SIX thousand and FIVE hundred lumens !!!!!!!!!!
http://reviews.mtbr.com/magicshine-l...2018-interbike
The beloved Magicshine brings us what we finally need in bike lights. Thanks to all the gods. 6500 lumens! I think you can have either 5000 or 1500 or all 6500 lumens. Thankfully now we will not only be able to blind everyone else on the road or trail, but we can now cause their eyeballs to burst into flames and maybe hopefully their heads will also explode. Yeah!!!!!! I don't know why "sms" did not report this in his post about Interbike. This has to be the most important thing to ever come from Interbike. He is letting us down. Here is the post from the article: "This latest offering from Magicshine incorporates everything they have learned about MTB lights over the years. The Monteer 6500 is MTB headlight designed for the most serious mountain biking enthusiasts, downhill racers and those who want nothing less than professional grade lighting system that can outshine the landing light on a passenger airliner. A max actual output of 6500 lumens is cranked out by 3x CREE XHP 50.2 and 2x XM-L2 LEDs. Like the Eagle series MTB headlights, Monteer 6500 is designed with multiple beam patterns modes, the XHP50.2 will put out a max of 5000 lumens of flood light, while the bottom row of XM-L2s shoots into the distance with up to 1500 lumens." It even has "CREE XHP and XM-L2 LEDs". So you know its got to be great. I bet it even meets or exceeds that German bicycle light standard. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Mon, 1 Oct 2018 15:14:18 -0700 (PDT), "
wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike A max actual output of 6500 lumens is cranked out by 3x CREE XHP 50.2 and 2x XM-L2 LEDs. Like the Eagle series MTB headlights, Monteer 6500 is designed with multiple beam patterns modes, the XHP50.2 will put out a max of 5000 lumens of flood light, while the bottom row of XM-L2s shoots into the distance with up to 1500 lumens." Only $350. https://magicshine.us/product/monteer-6500-mtb-headlight/ "Six cell battery pack uses super high capacity 18650 cells for a 10500 mAh total." Ok, let's do the math. Cree XHP 50.2 LED specs: https://www.cree.com/led-components/products/xlamp-leds-arrays/xlamp-xhp50-2 https://www.cree.com/led-components/media/documents/ds-XHP502.pdf The LED can be wired for either 6 or 12V. If I use an initial voltage of the cells at 3.85V, 3 cells = 11.6V, which is close to the maximum operating voltage and the end of the graph on Pg 8. At 11.6V, it draws 1.5 amps per LED and produces 180% of rated output (Pg 9) or: 1.8 * 1000 lumens @85C = 1800 lumens Three of these LED's will produce a total of 5,400 lumens. Close enough to the spec methinks. Cree XM-L2 LED specs: https://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xm-l2 https://www.cree.com/led-components/media/documents/XLampXML2.pdf My guess(tm) is that these are running on one cell with a series current regulator. At 3.85V/cell, the current could be set to anywhere. So, doing this backwards, in order to produce 750 lumens per LED, each LED would need to draw: 750 / 280 = 268% of rated output From the graph on Pg 6, that requires 2.3 amps, which is getting a bit close to the absolute max of 3.0A/LED. Total drain for both XM-L2 LED's is 4.6 amps. Total current with all the LED's on is: 4.5A = 4.6A = 9.1 amps Total dissipation is: (11.6v * 4.5A) + (3.85v * 4.6A) = 71 watts Let's see how long it will run at full power. "Burn time ranges from 1.2H to 82H depending on modes" I'll assume the best 2200 ma-hr cells. That would be: 3.85v * 2.2amp-hrs * 6 cells = 50.8 watt-hrs which means the battery will last: 71 watts / 50.8 watt-hrs = 1.4 hrs That also works as advertised. The LED's can (probably) deliver the specified 6500 lumens total, but the 71 watts of heat produced by the LED's will need to be radiated or conducted somewhere. I don't see any cooling system on the package. Building it out of mostly aluminum doesn't work without some kind of air flow: "To maximize heat dissipating potential, light housing has been redesigned with hard anodized aluminum which covers almost the entire light body." Swell, no fins to increase surface area. Let's see what the package can do as a heat sink. Latent heat for aluminum is 0.900 Joules/gm-K. The light weighs 142 grams, which I'll assume is mostly aluminum. The light dissipates 71 watts with all the LED's turned on. I would guess that 75C would be uncomfortably warm for both the electronics and the bicycle rider. That's a temp rise of 50C (50K). Joules = Watts * seconds = 71 watts * seconds. Therefo 0.900 = 71 * seconds / (142 * 50) Time(sec) = 900 seconds = 15 min Not too horrible. One has 15 minutes of full brightness lighting, in still air, before the LED's burn your hand or cause a thermal shutdown. When there's air flow, there will be more cooling and therefore take longer to get hot. The dimensions are 72 * 42 * 44 mm. Surface area is roughly: (2 * (72*42/2)) + (2 * (42*44)) + (44 * 72) 3,000 + 3,700 + 3,200 = 9,900 mm^2 I'll finish this later as I need to do something else right now. In my never humble opinion, the specs are quite real, but I have my doubts about the ability the aluminum heat sink to remove the heat produced. It's going to get very hot running at full power. I bet it even meets or exceeds that German bicycle light standard. Probably true because StVZO only sets the minimum requirements. However if the spec has a maximum output, so as not to blind oncoming traffic, it would probably fail. There was a proposal to limit brigtness to 2.0 lux at 10 meters at eye level to reduce blinding oncoming drivers and riders, but I don't know if that was added. A bit of StVZO analysis: https://swhs.home.xs4all.nl/fiets/tests/verlichting_analyse/verkeersregels/de_stvzo/index_en.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
Jeff Liebermann wrote:
Ok, let's do the math. I put a flashlight to the handlebars the other day with re-openable cable ties. It seems to work OK, a pretty solid fix. I cut the cable ties with a combination plier so it looks neat as well. The flashlight is 3*AAA batteries with 9 diodes. How many lumens is that, do you think? I think I should get a proper bicycle light soon tho. -- underground experts united http://user.it.uu.se/~embe8573 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
|
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/1/2018 10:18 PM, Emanuel Berg wrote:
Jeff Liebermann wrote: Ok, let's do the math. I put a flashlight to the handlebars the other day with re-openable cable ties. It seems to work OK, a pretty solid fix. I cut the cable ties with a combination plier so it looks neat as well. The flashlight is 3*AAA batteries with 9 diodes. How many lumens is that, do you think? I think I should get a proper bicycle light soon tho. One person who posts here spent years claiming that super-bright LED flashlights were better than bike headlights. Eventually, for Christmas I was given such a flashlight. It was bright enough that as I drove a freeway on a dark night, it clearly illuminated freeway signs overhead. But it was still a terrible bike headlight. You need more than brightness. You need proper optics, designed for the road. A circular beam cannot do that. -- - Frank Krygowski |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Mon, 1 Oct 2018 22:37:58 -0400, Frank Krygowski
wrote: On 10/1/2018 10:18 PM, Emanuel Berg wrote: Jeff Liebermann wrote: Ok, let's do the math. I put a flashlight to the handlebars the other day with re-openable cable ties. It seems to work OK, a pretty solid fix. I cut the cable ties with a combination plier so it looks neat as well. The flashlight is 3*AAA batteries with 9 diodes. How many lumens is that, do you think? I think I should get a proper bicycle light soon tho. One person who posts here spent years claiming that super-bright LED flashlights were better than bike headlights. Eventually, for Christmas I was given such a flashlight. It was bright enough that as I drove a freeway on a dark night, it clearly illuminated freeway signs overhead. But it was still a terrible bike headlight. You need more than brightness. You need proper optics, designed for the road. A circular beam cannot do that. Come now, a flashlight works perfectly well ... just ride slower :-) -- Cheers, John B. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Tue, 02 Oct 2018 04:18:35 +0200, Emanuel Berg
wrote: Jeff Liebermann wrote: Ok, let's do the math. I put a flashlight to the handlebars the other day with re-openable cable ties. It seems to work OK, a pretty solid fix. I cut the cable ties with a combination plier so it looks neat as well. The flashlight is 3*AAA batteries with 9 diodes. How many lumens is that, do you think? Not enough info. Measure the current drain from the battery and I'll give you a good guess(tm). I just happen to have a similar flashlight handy, so I measured mine at about 160 ma. At 4.5V, that's 720 mw. Generic T1(3mm) white LED's typically have an efficacy of about 20 lumens/watt. So the output would be: 0.720 watts * 20 lumens/watt = 14 lumens I did a quick double check with my lux meter and measured 16 lumens. Here's how it's done: https://groups.google.com/d/msg/rec.bicycles.tech/UJdJQFTDgl8/NgOZUloVCwAJ I was going to turn it into a web page, but after the rather discouraging response I got from this newsgroup and two other forums, I decided I had better things to do. AAA Alkaline cells run about 900 ma-hr capacity, so at 720 ma, you get maybe 1.3 hrs of operation. I think I should get a proper bicycle light soon tho. Yep, good idea: http://www.learnbydestroying.com/jeffl/pics/bicycles/slides/bicycle-flashlight.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
Jeff Liebermann wrote:
On Mon, 1 Oct 2018, " wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike JFTR, that's not an actual review, it's "sponsored content." A max actual output of 6500 lumens is cranked out by 3x CREE XHP 50.2 and 2x XM-L2 LEDs. Like the Eagle series MTB headlights, Monteer 6500 is designed with multiple beam patterns modes, the XHP50.2 will put out a max of 5000 lumens of flood light, while the bottom row of XM-L2s shoots into the distance with up to 1500 lumens." Only $350. https://magicshine.us/product/monteer-6500-mtb-headlight/ "Six cell battery pack uses super high capacity 18650 cells for a 10500 mAh total." Ok, let's do the math. [tech calculations snipped] In my never humble opinion, the specs are quite real, but I have my doubts about the ability the aluminum heat sink to remove the heat produced. It's going to get very hot running at full power. Even on full power, the rather primitive http://www.magicshine.com/wp-content/uploads/2018/07/MONTEER-6500-r-13-1.jpg 20 & 30 degrees beam delivers only half the 55,000 cd punch of the similar looking Lupine Alpha, the latter being three times as expensive, though. Nowhere close to an airliner landing beam's candlepower, of course, in contrast to what is purported by Francis Cashedo's marketing hyperbole. I bet it even meets or exceeds that German bicycle light standard. And I doubt it would even meet the optical part of the simpler high-beam standard. Probably true because StVZO only sets the minimum requirements. However if the spec has a maximum output, so as not to blind oncoming traffic, it would probably fail. There was a proposal to limit brigtness to 2.0 lux at 10 meters at eye level to reduce blinding oncoming drivers and riders, but I don't know if that was added. Decades ago, due to the introduction of those crazy bright, 36 lm, 2.4 W halogen bulbs. The previous limit was 0.7 lx. A bit of StVZO analysis: https://swhs.home.xs4all.nl/fiets/tests/verlichting_analyse/verkeersregels/de_stvzo/index_en.html No offense, but I'd characterize that as some facts and analysis, more unrestrained interpretation and speculation, swamped in a stream of consciousness, muddled by a lack of legal logic, trilingual challenges, unfamiliarity with technical concepts and comparable automotive standards. Worst of all, it's unlikely to get better by adding yet another source of information or correction. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Tuesday, October 2, 2018 at 7:09:13 AM UTC-7, Sepp Ruf wrote:
Jeff Liebermann wrote: On Mon, 1 Oct 2018, " wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike JFTR, that's not an actual review, it's "sponsored content." A max actual output of 6500 lumens is cranked out by 3x CREE XHP 50.2 and 2x XM-L2 LEDs. Like the Eagle series MTB headlights, Monteer 6500 is designed with multiple beam patterns modes, the XHP50.2 will put out a max of 5000 lumens of flood light, while the bottom row of XM-L2s shoots into the distance with up to 1500 lumens." Only $350. https://magicshine.us/product/monteer-6500-mtb-headlight/ "Six cell battery pack uses super high capacity 18650 cells for a 10500 mAh total." Ok, let's do the math. [tech calculations snipped] In my never humble opinion, the specs are quite real, but I have my doubts about the ability the aluminum heat sink to remove the heat produced. It's going to get very hot running at full power. Even on full power, the rather primitive http://www.magicshine.com/wp-content/uploads/2018/07/MONTEER-6500-r-13-1.jpg 20 & 30 degrees beam delivers only half the 55,000 cd punch of the similar looking Lupine Alpha, the latter being three times as expensive, though. Nowhere close to an airliner landing beam's candlepower, of course, in contrast to what is purported by Francis Cashedo's marketing hyperbole. I bet it even meets or exceeds that German bicycle light standard. And I doubt it would even meet the optical part of the simpler high-beam standard. Probably true because StVZO only sets the minimum requirements. However if the spec has a maximum output, so as not to blind oncoming traffic, it would probably fail. There was a proposal to limit brigtness to 2.0 lux at 10 meters at eye level to reduce blinding oncoming drivers and riders, but I don't know if that was added. Decades ago, due to the introduction of those crazy bright, 36 lm, 2.4 W halogen bulbs. The previous limit was 0.7 lx. A bit of StVZO analysis: https://swhs.home.xs4all.nl/fiets/tests/verlichting_analyse/verkeersregels/de_stvzo/index_en.html No offense, but I'd characterize that as some facts and analysis, more unrestrained interpretation and speculation, swamped in a stream of consciousness, muddled by a lack of legal logic, trilingual challenges, unfamiliarity with technical concepts and comparable automotive standards. Worst of all, it's unlikely to get better by adding yet another source of information or correction. StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/2/2018 11:29 AM, jbeattie wrote:
On Tuesday, October 2, 2018 at 7:09:13 AM UTC-7, Sepp Ruf wrote: Jeff Liebermann wrote: On Mon, 1 Oct 2018, " wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike JFTR, that's not an actual review, it's "sponsored content." A max actual output of 6500 lumens is cranked out by 3x CREE XHP 50.2 and 2x XM-L2 LEDs. Like the Eagle series MTB headlights, Monteer 6500 is designed with multiple beam patterns modes, the XHP50.2 will put out a max of 5000 lumens of flood light, while the bottom row of XM-L2s shoots into the distance with up to 1500 lumens." Only $350. https://magicshine.us/product/monteer-6500-mtb-headlight/ "Six cell battery pack uses super high capacity 18650 cells for a 10500 mAh total." Ok, let's do the math. [tech calculations snipped] In my never humble opinion, the specs are quite real, but I have my doubts about the ability the aluminum heat sink to remove the heat produced. It's going to get very hot running at full power. Even on full power, the rather primitive http://www.magicshine.com/wp-content/uploads/2018/07/MONTEER-6500-r-13-1.jpg 20 & 30 degrees beam delivers only half the 55,000 cd punch of the similar looking Lupine Alpha, the latter being three times as expensive, though. Nowhere close to an airliner landing beam's candlepower, of course, in contrast to what is purported by Francis Cashedo's marketing hyperbole. I bet it even meets or exceeds that German bicycle light standard. And I doubt it would even meet the optical part of the simpler high-beam standard. Probably true because StVZO only sets the minimum requirements. However if the spec has a maximum output, so as not to blind oncoming traffic, it would probably fail. There was a proposal to limit brigtness to 2.0 lux at 10 meters at eye level to reduce blinding oncoming drivers and riders, but I don't know if that was added. Decades ago, due to the introduction of those crazy bright, 36 lm, 2.4 W halogen bulbs. The previous limit was 0.7 lx. A bit of StVZO analysis: https://swhs.home.xs4all.nl/fiets/tests/verlichting_analyse/verkeersregels/de_stvzo/index_en.html No offense, but I'd characterize that as some facts and analysis, more unrestrained interpretation and speculation, swamped in a stream of consciousness, muddled by a lack of legal logic, trilingual challenges, unfamiliarity with technical concepts and comparable automotive standards. Worst of all, it's unlikely to get better by adding yet another source of information or correction. StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote:
On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/2/2018 2:32 PM, Sir Ridesalot wrote:
On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote:
On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
Today I was once again in the accursed
hardware store, where I acquired a flashlight, with the following specification: FL 1 Standard (?) 18h 38lm 40m (range) 400cd (?) Unlike the other previously mentioned in the thread, which had 9 diodes and was suspected to shine at 16lm, this is considerably stronger at 38, with only one LED, while also using 3*AAA batteries. -- underground experts united http://user.it.uu.se/~embe8573 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote:
On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors.. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
FL 1 Standard (?)
18h 38lm 40m (range) 400cd (?) It didn't say the weight on the packaging. Anyway it is 105g including batteries. -- underground experts united http://user.it.uu.se/~embe8573 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote:
On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later.. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors.. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512..18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 03/10/2018 2:16 PM, Sir Ridesalot wrote:
On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/3/2018 2:44 PM, Duane wrote:
On 03/10/2018 2:16 PM, Sir Ridesalot wrote: On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. I plead TLDR on this. It may or may not be in he https://www.cpsc.gov/Regulations-Law...ules/Bicycles/ or he https://www.federalregister.gov/docu...s-for-bicycles The tubular tire section is hilarious. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/3/2018 2:44 PM, Duane wrote:
On 03/10/2018 2:16 PM, Sir Ridesalot wrote: On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. OK I think I found it: https://www.cpsc.gov/Business--Manuf...-Requirements/ note link to subsection 1512.16: http://www.ecfr.gov/cgi-bin/text-idx...12_main_02.tpl Special note to fitness/performance crowd: "(1) A rider weighing at least 150 pounds must ride a bicycle at least 4 miles with the tires inflated to maximum recommended pressure. The rider must travel five times at a speed of at least 15 miles per hour over a 100 foot cleated course." Which seems to indicate a regulation of cyclists and cycling rather than actual hardware. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
AMuzi writes:
On 10/3/2018 2:44 PM, Duane wrote: On 03/10/2018 2:16 PM, Sir Ridesalot wrote: On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined 16 CFR §1512.16 in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. OK I think I found it: https://www.cpsc.gov/Business--Manuf...-Requirements/ note link to subsection 1512.16: http://www.ecfr.gov/cgi-bin/text-idx...12_main_02.tpl Special note to fitness/performance crowd: "(1) A rider weighing at least 150 pounds must ride a bicycle at least 4 miles with the tires inflated to maximum recommended pressure. The rider must travel five times at a speed of at least 15 miles per hour over a 100 foot cleated course." Which seems to indicate a regulation of cyclists and cycling rather than actual hardware. I think you might have meant subsection 1512.18, although the verbiage in that section is not exactly as in your excerpt. It describes a testing procedure, not very rigorous, but neither completely ridiculous. Unless I am mistaken, all of the quoted US law prescribes minimum standards for bicycles offered for sale. The Canadian laws quoted seem to prescribe standards for bicycles as they are ridden on public ways. US states do have similar laws, although I have never lived anywhere that they are actually enforced. -- |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 1:31:04 PM UTC-7, Radey Shouman wrote:
AMuzi writes: On 10/3/2018 2:44 PM, Duane wrote: On 03/10/2018 2:16 PM, Sir Ridesalot wrote: On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR 1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined 16 CFR §1512.16 in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. OK I think I found it: https://www.cpsc.gov/Business--Manuf...-Requirements/ note link to subsection 1512.16: http://www.ecfr.gov/cgi-bin/text-idx...12_main_02.tpl Special note to fitness/performance crowd: "(1) A rider weighing at least 150 pounds must ride a bicycle at least 4 miles with the tires inflated to maximum recommended pressure. The rider must travel five times at a speed of at least 15 miles per hour over a 100 foot cleated course." Which seems to indicate a regulation of cyclists and cycling rather than actual hardware. I think you might have meant subsection 1512.18, although the verbiage in that section is not exactly as in your excerpt. It describes a testing procedure, not very rigorous, but neither completely ridiculous. Unless I am mistaken, all of the quoted US law prescribes minimum standards for bicycles offered for sale. The Canadian laws quoted seem to prescribe standards for bicycles as they are ridden on public ways. US states do have similar laws, although I have never lived anywhere that they are actually enforced. -- Yes, this is the Consumer Products Safety Commission's regulation relating to the sale of bicycles. The cite looks good: https://www.law.cornell.edu/cfr/text/16/1512.16 The typical UVC (Uniform Vehicle Code) provision states: 12-701-Application of chapter to bicycles No provision in this chapter shall apply to bicycles nor to equipment for use on bicycles except as to provisions in this article or unless a provision has been made specifically applicable to bicyclists, bicycles or their equipment. S 12-702-Headlight and taillight required at night Every bicycle in use at the times described in 12-201 shall be equipped with a headlight on the front emitting a white light visible from a distance of at least 500 feet to the front, and a taillight on the rear emitting a red light visible from a distance of at least 1000 feet to the rear. S 12-703-Rear reflector required at all times Every bicycle shall be equipped with a red reflector of a type approved by the department which shall be visible for 600 feet to the rear when directly in front of lawful lower beams of headlights on a motor vehicle. S 12-704Side reflector or light required at night Every bicycle when in use at the times described in S 12-201 shall be equipped with reflective material of sufficient size and reflectivity to be visible from both sides for 600 feet when directly in front of lawful lower beams of head lamps on a motor vehicle, or, in lieu of such reflective material, with a lighted lamp visible from both sides from a distance of at least 500 feet. S 12-705-Additional lights or reflectors authorized A bicycle or its rider may be equipped with lights or reflectors in addition to those required by the foregoing sections. These lights and/or reflectors may be LED or regular, steady or flashing, as long as they comply with the requirements or limitations of the department. S 12-706-Brake required Every bicycle shall be equipped with a brake or brakes which will enable its driver to stop the bicycle within 15 feet from a speed of 10 miles per hour on dry, level, clean pavement. S 12-707 Sirens, whistles prohibited No bicycle may be equipped with a siren or whistle. No person may use a siren or whistle when operating a bicycle. Most states have some version of this rule. In Oregon: https://www.oregonlaws.org/ors/815.280 I'm pushing for a rule in Oregon requiring fenders with a full rear flap. Rain is returning. And I want to repeal the no-siren rule. How is a cyclist to be truly conspicuous without a siren? -- Jay Beattie. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 3:08:20 PM UTC-5, AMuzi wrote:
I plead TLDR on this. It may or may not be in he https://www.cpsc.gov/Regulations-Law...ules/Bicycles/ or he https://www.federalregister.gov/docu...s-for-bicycles -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 I had no idea this is how the minimum insertion mark on a seatpost is set. § 1512.15 Requirements for seat. (b) Seat post. The seat post shall contain a permanent mark or ring that clearly indicates the minimum insertion depth (maximum seat-height adjustment); the mark shall not affect the structural integrity of the seat post. This mark shall be located no less than two seat-post diameters from the lowest point on the post shaft, and the post strength shall be maintained for at least a length of one shaft diameter below the mark. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 4:09:39 PM UTC-5, jbeattie wrote:
S 12-707 Sirens, whistles prohibited No bicycle may be equipped with a siren or whistle. No person may use a siren or whistle when operating a bicycle. I'm pushing for a rule in Oregon requiring fenders with a full rear flap. Rain is returning. And I want to repeal the no-siren rule. How is a cyclist to be truly conspicuous without a siren? -- Jay Beattie. How can they make it illegal to have a siren/horn on a bicycle, yet cars and motorcycles are required to have horns so drivers can blare them at cyclists? I am aware that fair and law are not related. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
|
SIX thousand and FIVE hundred lumens !!!!!!!!!!
AMuzi wrote:
On 10/3/2018 2:44 PM, Duane wrote: On 03/10/2018 2:16 PM, Sir Ridesalot wrote: On Wednesday, October 3, 2018 at 12:16:07 PM UTC-4, jbeattie wrote: On Tuesday, October 2, 2018 at 2:04:27 PM UTC-7, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 4:51:31 PM UTC-4, AMuzi wrote: On 10/2/2018 2:32 PM, Sir Ridesalot wrote: On Tuesday, October 2, 2018 at 1:09:38 PM UTC-4, AMuzi wrote: On 10/2/2018 11:29 AM, jbeattie wrote: Snipped StVZO are job-killing regulations. Markets should be allowed to regulate light output. Die globalists, die! https://www.brooksengland.com/media/...1638b377e8.jpg -- Jay Beattie. Nice try but it's not safe. No Federally mandated CPSC wheel reflectors. Anything could happen! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 #1. Is that Joerg's bicycle? #2. I see a wheel reflector on each wheel. Cheers Nice try but they're the old Amber, not the current Safety White. Danger! -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Here they're supposed to be white on the front and red on the rear. Ditto for the safety reflective tape that's supposed to be applied to the front and rear forks. That's according to Ontario, Canada law. If cops were real sticklers to the requirements for bicycles there'ld be darn few Legal bicycles here on the roads. Cheers Cheers Amber or white are acceptable. Memorize this. There will be a test later. 16 CFR §1512.16 Requirements for reflectors. Bicycles shall be equipped with reflective devices to permit recognition and identification under illumination from motor vehicle headlamps. The use of reflector combinations off the center plane of the bicycle (defined in §1512.18(m)(2)) is acceptable if each reflector meets the requirements of this section and of §1512.18 (m) and (n) and the combination of reflectors has a clear field of view of ±10° vertically and ±50° horizontally. Sidewalk bicycles are not required to have reflectors. (a) Front, rear, and pedal reflectors. There shall be an essentially colorless front-facing reflector, essentially colorless or amber pedal reflectors, and a red rear-facing reflector. (b) Side reflectors. There shall be retroreflective tire sidewalls or, alternatively, reflectors mounted on the spokes of each wheel, or, for non-caliper rim brake bicycles, retroreflective wheel rims. The center of spoke-mounted reflectors shall be within 76 mm (3.0 in.) of the inside of the rim. Side reflective devices shall be visible on each side of the wheel. (c) Front reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The optical axis of the reflector shall be directed forward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are tracking in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (c) when the reflector is attached to the bicycle. The front reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (d) Rear reflector. The reflector or mount shall not contact the ground plane when the bicycle is resting on that plane in any orientation. The reflector shall be mounted such that it is to the rear of the seat mast with the top of the reflector at least 76 mm (3.0 in) below the point on the seat surface that is intersected by the line of the seat post. The optical axis of the reflector shall be directed rearward within 5° of the horizontal-vertical alignment of the bicycle when the wheels are traveling in a straight line, as defined in §1512.18(m)(2). The reflectors and/or mounts shall incorporate a distinct, preferred assembly method that shall insure that the reflector meets the optical requirements of this paragraph (d) when the reflector is attached to the bicycle. The rear reflector shall be tested in accordance with the reflector mount and alignment test, §1512.18(m). (e) Pedal reflectors. Each pedal shall have reflectors located on the front and rear surfaces of the pedal. The reflector elements may be either integral with the construction of the pedal or mechanically attached, but shall be sufficiently recessed from the edge of the pedal, or of the reflector housing, to prevent contact of the reflector element with a flat surface placed in contact with the edge of the pedal. (f) Side reflectors. Reflectors affixed to the wheel spokes shall be mounted either flat on the spokes or within the spoke cage such that the angle between the optical axis and the normal to the plane of the wheel shall not exceed the angle of the spokes with the plane of the wheel. The reflectors shall not interfere with any wheel adjustments. The side-mounted reflector devices shall be essentially colorless or amber on the front wheel and essentially colorless or red on the rear wheel. (g) Reflector tests. The pedal, front-mount, rear-mount, and side-mount reflectors shall be tested in accordance with the reflector test, §1512.18(n), to assure the reflectance values over the angles given in tables 1 and 2. (h) Retroreflective tire sidewalls. When retroreflective tire sidewalls are used in lieu of spoke-mounted reflectors, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the sidewall. (2) The retroreflective material shall adhere to the tire such that after the tire has been subjected to a temperature of 50° ±3 °C (122° ±5.4 °F) for 30 minutes, the retroreflective material cannot be peeled or scraped away without removal of tire material. (3) The retroreflective material shall be as resistant to abrasion as is the adjacent sidewall material so that when retroreflective material is removed from the inflated tire by abrasion with a wet, steel bristle brush, tire material will be removed along with the retroreflective material. (4) The retroreflective material shall be tested for performance in accordance with the retroreflective tire test, §1512.18(o), to assure the reflectance properties over the angles given in table 3. When a portion of the retroreflective material is selected (and the remainder is masked as specified in §1512.18(o)(2)(i)), the selected portion shall not contact the ground plane when the assembled bicycle is resting on that plane in any orientation. (i) Retroreflective rims. When retroreflective rims are used in lieu of spoke-mounted reflectors or retroreflective tire sidewalls, the reflecting material shall meet the following requirements: (1) The retroreflective material shall form a continuous circle on the rim. (2) If the retroreflective material is applied to the rim in the form of a self-adhesive tape, the following requirement must be met: Use a sharp knife, razor blade, or similar instrument to carefully release an end of the tape material sufficient to be grasped between the thumb and finger. Grasp the freed tape end and gradually pull in a direction 90° to the plane of the rim. The tape material must break before additional separation (peeling) from the rim is observed. (3) After the retroreflective material is abraded in accordance with the abrasion test for retroreflective rims at §1512.18(r), the rim must then be tested for performance in accordance with the retroreflective tire and rim test at §1512.18(o), to assure the reflectance properties over the angles given in table 3. Question One: Johnny is riding down the sidewalk on his bicycle. If his bicycle is is festooned with wheel-mounted side reflectors in accordance with the law, what is the color of the reflector in his front wheel? a. Amber b. Essentially Colorless c. Either a or b d. Neither a or b because Johnny is on a sidewalk bicycle e. None of the above because Johnny is breaking the law by riding his bicycle on the sidewalk and was taken down by the police. -- Jay Beattie. Is all that U.S.A. law or Ontario, Canada law? Cheers I don't think there is a U.S.A. law. I think in the states it's by the state as it's by the province in Canada. That said, amber is allowed in Quebec in some positions. 232. Every bicycle must carry (1) one white reflector at the front; (2) one red reflector at the rear; (3) one amber or white reflector on each pedal; (4) on the front wheel, an amber or white reflector attached to the spokes and visible on both sides of the bicycle, an amber or white reflective strip attached to each side of the fork, a tire with reflective sidewalls or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides; and (5) on the back wheel, a red or white reflector attached to the spokes and visible on both sides of the bicycle, a red or white reflective strip on each seat stay, a tire with reflective sidewalls, or a rim with a continuous reflective strip around the entire circumference of the wheel on both sides. Despite the first paragraph, a bicycle need not carry the reflector required under subparagraph 3 of that paragraph if the cyclist wears a reflective band around each ankle or shoes with reflective strips. Any equipment or object placed on a bicycle that blocks a prescribed reflector or its substitute must carry a reflector or a reflective strip. A trailer towed by a bicycle must carry two red reflectors at the rear, as far apart as practicable, or a red reflective strip placed as close to horizontal as possible across the width of the trailer. 1986, c. 91, s. 232; 2010, c. 34, s. 45; 2018, c. 7, s. 43. I plead TLDR on this. It may or may not be in he https://www.cpsc.gov/Regulations-Law...ules/Bicycles/ or he https://www.federalregister.gov/docu...s-for-bicycles The tubular tire section is hilarious. Thanks. I thought it was by state. -- duane |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 3:00:11 PM UTC-7, AMuzi wrote:
On 10/3/2018 4:41 PM, wrote: On Wednesday, October 3, 2018 at 4:09:39 PM UTC-5, jbeattie wrote: S 12-707 Sirens, whistles prohibited No bicycle may be equipped with a siren or whistle. No person may use a siren or whistle when operating a bicycle. I'm pushing for a rule in Oregon requiring fenders with a full rear flap. Rain is returning. And I want to repeal the no-siren rule. How is a cyclist to be truly conspicuous without a siren? -- Jay Beattie. How can they make it illegal to have a siren/horn on a bicycle, yet cars and motorcycles are required to have horns so drivers can blare them at cyclists? I am aware that fair and law are not related. I have no idea. The usual scenario is that some major vendor of sirens or whatnot refuses to pay up during 'rulemaking'. I don't think such a vendor exists for bicycle sirens, so one guess is as good as another. And I should have said "law" and not "rule." CPSC makes rules. Legislatures pass traffic laws like the UVC. In either case, BIG SIREN is lurking in the background, manipulating legislators and administrators -- waiting to propose its mandatory siren rule to the CPSC and a multi-state model law for sirens on bicycles. Soon, sirens will be mandatory! BTW, regulation created some of the greatest of (former) American companies like Portland-based Freighliner. Those snub-nosed cab-over tractors were invented to maximize cargo space under the ICC/DOT regulations limiting tractor/trailer LOA. Every regulation creates a business opportunity. Regulations are job creators! -- Jay Beattie. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wednesday, October 3, 2018 at 6:17:26 PM UTC-5, jbeattie wrote:
BTW, regulation created some of the greatest of (former) American companies like Portland-based Freighliner. Those snub-nosed cab-over tractors were invented to maximize cargo space under the ICC/DOT regulations limiting tractor/trailer LOA. Every regulation creates a business opportunity. Regulations are job creators! -- Jay Beattie. I can see that. Use a longer trailer, haul more stuff, if you use a short cabover truck/engine. Only problem is you would then have different length trailers for cabover and engine in front trucks. Trailer manufacturers would not like that. They want uniformity. And all the shippers loading material into the trailers would have to adjust to loading a different volume in each trailer. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Wed, 3 Oct 2018 17:01:31 -0700 (PDT), "
wrote: On Wednesday, October 3, 2018 at 6:17:26 PM UTC-5, jbeattie wrote: BTW, regulation created some of the greatest of (former) American companies like Portland-based Freighliner. Those snub-nosed cab-over tractors were invented to maximize cargo space under the ICC/DOT regulations limiting tractor/trailer LOA. Every regulation creates a business opportunity. Regulations are job creators! -- Jay Beattie. I can see that. Use a longer trailer, haul more stuff, if you use a short cabover truck/engine. Only problem is you would then have different length trailers for cabover and engine in front trucks. Trailer manufacturers would not like that. They want uniformity. And all the shippers loading material into the trailers would have to adjust to loading a different volume in each trailer. I think that in the U.S. trailer makers must produce trailers in varying lengths already as the overall length of the tractor - trailer unit varies considerable from state to state with New Hampshire and S. Carolina limiting overall length to 53 feet while Wyoming allows an 85 foot overall length. -- Cheers, John B. |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
John B. Slocomb wrote:
:On Wed, 3 Oct 2018 17:01:31 -0700 (PDT), " wrote: :On Wednesday, October 3, 2018 at 6:17:26 PM UTC-5, jbeattie wrote: : : BTW, regulation created some of the greatest of (former) American companies like Portland-based Freighliner. Those snub-nosed cab-over tractors were invented to maximize cargo space under the ICC/DOT regulations limiting tractor/trailer LOA. Every regulation creates a business opportunity. Regulations are job creators! : : -- Jay Beattie. : :I can see that. Use a longer trailer, haul more stuff, if you use a short cabover truck/engine. Only problem is you would then have different length trailers for cabover and engine in front trucks. Trailer manufacturers would not like that. They want uniformity. And all the shippers loading material into the trailers would have to adjust to loading a different volume in each trailer. :I think that in the U.S. trailer makers must produce trailers in :varying lengths already as the overall length of the tractor - trailer :unit varies considerable from state to state with New Hampshire and S. :Carolina limiting overall length to 53 feet while Wyoming allows an 85 :foot overall length. 53 foot is a standard single trailer. Combination trailers use shorter trailers, typically 28 feet, six inches long, with some variation. Trucking companies like combination vehicles for a variety of reasons, not least it lets one tractor pull more stuff. But also the individual pups are more flexible, if you are delivering or picking up multiple at the same location, each one can be put its own dock door, and loaded or unloaded in parallel; a single pup can be used for urban delivery service, and it makes cross country routing a bit easier. That's van trucks. other stuff follows their own rules, some of it highly specialized. -- Movable type was evidently a fad. --Amanda Walker |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
FL 1 Standard (?)
18h 38lm 40m (range) 400cd (?) OK, so FL 1 is the "ANSI FL1 Standard" ("FL" is "flashlight", I take it) and cd is "candela". I suppose one has to read the article [1] to learn what sense to make of the 400cd specification. [1] http://www.led-resource.com/ansi-fl1-standard/ -- underground experts united http://user.it.uu.se/~embe8573 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 04/10/2018 11:02 AM, Joerg wrote:
On 2018-10-01 15:14, wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike The beloved Magicshine brings us what we finally need in bike lights. Thanks to all the gods.Â* 6500 lumens!Â* I think you can have either 5000 or 1500 or all 6500 lumens.Â* Thankfully now we will not only be able to blind everyone else on the road or trail, but we can now cause their eyeballs to burst into flames and maybe hopefully their heads will also explode.Â* Yeah!!!!!! This one for their rear light is weird, quote "A sleep mode is triggered after one minute of inaction to save power, any vibration will immediately re-activate the unit". So the light will go out while waiting at an intersection? Really? Nobody raised their hand during the design review? Was there even a design review? [...] Maybe anyone with 6500 lumens isn't stopping at red lights. Or maybe they just jiggle the bike to turn it on again... |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On Thu, 04 Oct 2018 14:33:34 +0200, Emanuel Berg
wrote: FL 1 Standard (?) 18h 38lm 40m (range) 400cd (?) OK, so FL 1 is the "ANSI FL1 Standard" ("FL" is "flashlight", I take it) and cd is "candela". I suppose one has to read the article [1] to learn what sense to make of the 400cd specification. [1] http://www.led-resource.com/ansi-fl1-standard/ Maybe reading the definitions of candelas, lux, and lumens might help: https://blog.1000bulbs.com/home/whats-the-difference-between-candela-lux-and-lumens https://www.knivesandtools.com/en/ct/torches-lux-candela-lumen.htm There are calculators for converting between these. Be sure to read about "solid angles". -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 2018-10-04 08:10, Duane wrote:
On 04/10/2018 11:02 AM, Joerg wrote: On 2018-10-01 15:14, wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike The beloved Magicshine brings us what we finally need in bike lights. Thanks to all the gods. 6500 lumens! I think you can have either 5000 or 1500 or all 6500 lumens. Thankfully now we will not only be able to blind everyone else on the road or trail, but we can now cause their eyeballs to burst into flames and maybe hopefully their heads will also explode. Yeah!!!!!! This one for their rear light is weird, quote "A sleep mode is triggered after one minute of inaction to save power, any vibration will immediately re-activate the unit". So the light will go out while waiting at an intersection? Really? Nobody raised their hand during the design review? Was there even a design review? [...] Maybe anyone with 6500 lumens isn't stopping at red lights. I've had a rider in front of me in downtown Sacramento who blew through every single red light. Couldn't believe it. He was slower so I always caught up, then he pulled away from me at the next red light. His bike was completely unlit as unfortunately most American road bikes are. ... Or maybe they just jiggle the bike to turn it on again... "Attention, this light only works properly when mounted on a vibrator" :-) -- Regards, Joerg http://www.analogconsultants.com/ |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
Jeff Liebermann wrote:
OK, so FL 1 is the "ANSI FL1 Standard" ("FL" is "flashlight", I take it) and cd is "candela". I suppose one has to read the article [1] to learn what sense to make of the 400cd specification. [1] http://www.led-resource.com/ansi-fl1-standard/ Maybe reading the definitions of candelas, lux, and lumens might help I don't think so :) https://blog.1000bulbs.com/home/whats-the-difference-between-candela-lux-and-lumens https://www.knivesandtools.com/en/ct/torches-lux-candela-lumen.htm There are calculators for converting between these. Be sure to read about "solid angles". OK, I read the two web pages! (There is nothing on solid angles what I could see.) What *I think* I understood is that LUX: lux is describing how bright the object will be, or how big an area (floor or wall) you can enlight, by pointing the flashlight at it. LUMEN: lumen is how much light that comes from the light source, only this doesn't take into account if and how the light is obstructed or enforced/directed, e.g. because of the construction of the lamp, what lens there is and where, etc. CANDELA: candela takes into account obstructions (various blockings of the light) but also the enforcing of it thru a lens. This means that candela is a good unit to determine how far away the light will actually be visible, for example if you waive it to the sea from the beach of a deserted island... For bike applications, it seems for commuting in a well-lit city with traffic, you'd want candela, for MTB you'd want lux, and for touring, you'd want a combination :) -- underground experts united http://user.it.uu.se/~embe8573 |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/4/2018 11:02 AM, Joerg wrote:
On 2018-10-01 15:14, wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike The beloved Magicshine brings us what we finally need in bike lights. Thanks to all the gods.Â* 6500 lumens!Â* I think you can have either 5000 or 1500 or all 6500 lumens.Â* Thankfully now we will not only be able to blind everyone else on the road or trail, but we can now cause their eyeballs to burst into flames and maybe hopefully their heads will also explode.Â* Yeah!!!!!! This one for their rear light is weird, quote "A sleep mode is triggered after one minute of inaction to save power, any vibration will immediately re-activate the unit". So the light will go out while waiting at an intersection? Really? Nobody raised their hand during the design review? Was there even a design review? First, their definition of "sleep mode" may not be "goes out." It could, I suppose, just become much dimmer. In any case, it would be easy enough to jiggle the bike a bit to turn it back on. But it's probably not necessary. Ohio law specifically permits lights that go out when the bike is stationary, and there's never been a report of a death or serious injury caused by that feature. When cyclists stop, it's almost always because of a red light or stop sign. Motorists stop for those things as well (in fact, more often than cyclists do). A motorist coming to a stop at night will see a stationary cyclist in the lane in front of him. -- - Frank Krygowski |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/4/2018 1:26 PM, Emanuel Berg wrote:
For bike applications, it seems for commuting in a well-lit city with traffic, you'd want candela, for MTB you'd want lux, and for touring, you'd want a combination :) I'd say that for on-road bike applications, what you should want is good optical design. Here's why: With proper optics, it takes very few lumens to light the road surface well enough for safety. And that should be your top priority. There's plenty of hype about motorists running over cyclists. We even have one poster who has claimed there's great hazard from tree branches just six feet above above a road surface. But in real life, the great majority of bike crashes are caused by problems with the road surface - slippery spots, potholes, streetcar tracks and the like. So you want to see the road surface well. The unit of measurement that applies is lux - but simply giving one lux number doesn't differentiate good lights from bad. Putting plenty of lux in one spot (say) two meters in front of a cyclist is worse than useless. A "hot spot" harms a person's night vision and makes it harder to see outside that spot. What you want is an even spread of perceived illumination on the road, plus (for faster riding) good "throw" down the road just below the horizon. This requires a complex beam shape, one that actually throws fewer lumens down close to the cyclist, gradually increasing further in front of the cyclist, then an even brighter beam just below the horizon. And, of course, you want adequate spread side to side. If you have a headlight that illuminates the roadway sufficiently, you _will_ be adequately visible to oncoming traffic. IOW, they have enough candelas. Even weak novelty lights are adequately visible to oncoming traffic, and those don't light the road surface at all. -- - Frank Krygowski |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 2018-10-04 10:40, Frank Krygowski wrote:
On 10/4/2018 11:02 AM, Joerg wrote: On 2018-10-01 15:14, wrote: http://reviews.mtbr.com/magicshine-l...2018-interbike The beloved Magicshine brings us what we finally need in bike lights. Thanks to all the gods. 6500 lumens! I think you can have either 5000 or 1500 or all 6500 lumens. Thankfully now we will not only be able to blind everyone else on the road or trail, but we can now cause their eyeballs to burst into flames and maybe hopefully their heads will also explode. Yeah!!!!!! This one for their rear light is weird, quote "A sleep mode is triggered after one minute of inaction to save power, any vibration will immediately re-activate the unit". So the light will go out while waiting at an intersection? Really? Nobody raised their hand during the design review? Was there even a design review? First, their definition of "sleep mode" may not be "goes out." It could, I suppose, just become much dimmer. In any case, it would be easy enough to jiggle the bike a bit to turn it back on. Not very smart on the part of the design engineers. But it's probably not necessary. Ohio law specifically permits lights that go out when the bike is stationary, ... Not a smart decision by the lawmakers. ... and there's never been a report of a death or serious injury caused by that feature. Grandpa drove without a seat belt all his life and never go hurt, so ... BTW, it even happens from the front, even by police officers: https://fox2now.com/2018/07/30/polic...hone-in-video/ Nothing can replace bright light other than even brighter lights. Which both of my bikes have. ... When cyclists stop, it's almost always because of a red light or stop sign. Motorists stop for those things as well (in fact, more often than cyclists do). A motorist coming to a stop at night will see a stationary cyclist in the lane in front of him. Not if you are waiting in a turn lane without a light. That's where a local cyclist was hit, hard. I don't remember if she survived but she was mangled pretty badly. -- Regards, Joerg http://www.analogconsultants.com/ |
SIX thousand and FIVE hundred lumens !!!!!!!!!!
On 10/4/2018 1:04 PM, Frank Krygowski wrote:
On 10/4/2018 1:26 PM, Emanuel Berg wrote: For bike applications, it seems for commuting in a well-lit city with traffic, you'd want candela, for MTB you'd want lux, and for touring, you'd want a combination :) I'd say that for on-road bike applications, what you should want is good optical design. Here's why: With proper optics, it takes very few lumens to light the road surface well enough for safety. And that should be your top priority. There's plenty of hype about motorists running over cyclists. We even have one poster who has claimed there's great hazard from tree branches just six feet above above a road surface. But in real life, the great majority of bike crashes are caused by problems with the road surface - slippery spots, potholes, streetcar tracks and the like. So you want to see the road surface well. The unit of measurement that applies is lux - but simply giving one lux number doesn't differentiate good lights from bad. Putting plenty of lux in one spot (say) two meters in front of a cyclist is worse than useless. A "hot spot" harms a person's night vision and makes it harder to see outside that spot. What you want is an even spread of perceived illumination on the road, plus (for faster riding) good "throw" down the road just below the horizon. This requires a complex beam shape, one that actually throws fewer lumens down close to the cyclist, gradually increasing further in front of the cyclist, then an even brighter beam just below the horizon. And, of course, you want adequate spread side to side. If you have a headlight that illuminates the roadway sufficiently, you _will_ be adequately visible to oncoming traffic. IOW, they have enough candelas. Even weak novelty lights are adequately visible to oncoming traffic, and those don't light the road surface at all. +1, covers all the important points well. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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