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#292
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Why do some forks and frames have brake rotor size limits?
On Wed, 01 Nov 2017 22:09:08 -0400, Joy Beeson
wrote: On Thu, 02 Nov 2017 08:54:44 +0700, John B. wrote: With my truck it just as easy. Foot on the brake thus limiting engine RPM, other foot on the throttle, press and you increase fuel flow to the engine causing a rich mixture and thus smoke. But that involves learning a little something, and thinking about how you drive! Well, there is that :-) Painful for some I guess. -- Cheers, John B. |
#293
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Why do some forks and frames have brake rotor size limits?
On Wed, 1 Nov 2017 20:58:21 -0700 (PDT), Frank Krygowski
wrote: On Wednesday, November 1, 2017 at 10:09:50 PM UTC-4, John B. wrote: On Wed, 01 Nov 2017 12:27:36 -0700, Joerg wrote: On 2017-10-31 07:43, wrote: On Monday, October 30, 2017 at 8:14:01 PM UTC-7, Frank Krygowski wrote: On 10/30/2017 6:53 PM, Joerg wrote: On 2017-10-29 17:09, Frank Krygowski wrote: ... let me repeat: I've had some motorists act displeased when I've ridden at lane center. I've never had one run me over. I've never known another cyclist who had that happen. I knew two personally who have been hit from behind. They survived but one lost a kidney and the other had a ruptured spleen. Then there was the woman here who got rear-ended in the right lane at high speed. Died. Numerous others down in the valley, including an off-duty police officer who was catapulted off his road bike and died. And I can double check my list, but I think it's now up to nine friends who were killed in motor vehicle accidents. Zero on bicycles. We can trade anecdotes (and you frequently do) but I give more credence to unbiased data. It doesn't pay to be timid. Man up. Why take the risk when there are alternatives such as this? https://goo.gl/maps/XJk1gMRC2eA2 Here's why I "take the risk," Joerg. First, the risk of being hit while riding lane center is extremely low. Most of those hit that way seem to be unlit cyclists riding at night, probably drunk or nearly so. Data's a bit soft, but that does seem to be what it shows. But more important: If I waited for "alternatives" such as the one you show to be built, I would have missed about 45 years of enthusiastic adult riding. I'd have missed riding in about a dozen different countries, 47 states and hundreds of different towns and cities. I wouldn't have been able to ride my bike to work at four different jobs. I'd have missed wonderful vacations with my family, and I'd have missed making at least a hundred good cycling friends. I know many people have bought the "Danger! Danger!" mantra and never leave the nice, safe (and horridly boring) bike path. I chose instead to learn to be competent on ordinary roads. And I'm damned glad I did. We pretty much agree with this. I don't have to worry any more about riding a bike around dangerous drivers than I would driving a car. But that is a clear and present danger because the police no longer enforce driving laws. Yesterday I was driving up the street and some woman pulls a large SUV out of her driveway directly in front of me forcing me to slam the brakes on. It is common for women especially to pull out of parking lots or other driveways looking to the right when traffic comes from the left. With me that happened yesterday. School bus from the other side, driver backed out of driveway with gusto into the school bus' path, the bus driver swerved around and into my lane. If I had been lane center I'd be in the hospital or morgue today. Luckily I rode AFRAP, the hydraulic brakes of my MTB came on prontissimo and I was able to leave the road without crashing because, well, it was an MTB. Yes, the offending driver was a woman but I've seen guys do that as well. She was visibly shaken by all that. Gee Joerg, you must be riding on very crooked roads. The city streets I ride on are straight enough that I can see, oh probably 50 feet in front of me, and by watching I can see vehicles, way down the road, that might be meaning to drive out into traffic and even braking by dragging your feet lets you slow down enough to avoid them. I think the modern term is "Defensive Driving" and it is usually defined as "Its aim is to reduce the risk of collision by anticipating dangerous situations, despite adverse conditions or the mistakes of others." Of course, the (also modern) street definition is "get your head out of your arse". A bit impolite perhaps... but memorable. And as I've said before, I think that idea of observing ahead and planning ahead is foreign to lots of bicyclists and drivers. When I see a car beginning to back out of a driveway, I go on high alert. When I see a car approaching in my rear view mirror at the same time one is approaching from the front, I pay lots of attention and monitor their progress. When I'm approaching a section of road filled with potholes, I don't just aim to miss the one in front of me; I plot a path through the whole field. When I'm driving and see brake lights way up ahead, I slow down and get ready for more serious moves, even though most drivers never seem to look further ahead than the car 10 feet in front of them. I think this sort of planning ahead is why I've had so few bike crashes over the years. Heck, I've never needed disc brakes to save myself from deer! - Frank Krygowski In line with the Safety! Safety! motif, There was a short subject on the news last night about a guy that met a snake while riding a small motorcycle. Not wanting to run over it he stopped whereupon the snake crawled up the forks and twined around the handle bars. Now this was what the Thais call a "green snake" ( known in the West as a "bamboo viper" ) and treat with a great deal of respect. To quote an old country saying, "he bite; you die". Apparently the guy also posted it to you tube at https://www.youtube.com/watch?v=e49kbcVRuzE Apparently one can't be safe anywhere :-) -- Cheers, John B. |
#294
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Why do some forks and frames have brake rotor size limits?
On 2017-11-01 20:34, Frank Krygowski wrote:
On Wednesday, November 1, 2017 at 4:02:54 PM UTC-4, Joerg wrote: On 2017-11-01 13:00, Frank Krygowski wrote: On 11/1/2017 3:27 PM, Joerg wrote: With me that happened yesterday. School bus from the other side, driver backed out of driveway with gusto into the school bus' path, the bus driver swerved around and into my lane. If I had been lane center I'd be in the hospital or morgue today. I don't think I'd have ended up in the hospital just because I rode at lane center. I know about steering a bike. Except when it's too late to get to the side or as in this case off the road. But I know, you are superman and can easily put on a kilowatt or two to do this uphill. I didn't see anything about uphill speed helping to avoid this crash. Simple: Steering from lane center to off the road requires a lot of speed to avoid a huge oncomuing yellow object. Being AFRAP (and having a MTB) saved teh bacon here. I have taught, practiced and been tested on bike emergency maneuvers several times. It's something that happens if you take a Cycling Savvy class, for instance. As I've previously described, I've used that once, long ago, to avoid a somewhat similar crash. That one was a sudden left cross. I wouldn't be interested in such "lessons". -- Regards, Joerg http://www.analogconsultants.com/ |
#295
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Why do some forks and frames have brake rotor size limits?
On 2017-11-01 19:09, John B. wrote:
On Wed, 01 Nov 2017 12:27:36 -0700, Joerg wrote: On 2017-10-31 07:43, wrote: On Monday, October 30, 2017 at 8:14:01 PM UTC-7, Frank Krygowski wrote: On 10/30/2017 6:53 PM, Joerg wrote: On 2017-10-29 17:09, Frank Krygowski wrote: ... let me repeat: I've had some motorists act displeased when I've ridden at lane center. I've never had one run me over. I've never known another cyclist who had that happen. I knew two personally who have been hit from behind. They survived but one lost a kidney and the other had a ruptured spleen. Then there was the woman here who got rear-ended in the right lane at high speed. Died. Numerous others down in the valley, including an off-duty police officer who was catapulted off his road bike and died. And I can double check my list, but I think it's now up to nine friends who were killed in motor vehicle accidents. Zero on bicycles. We can trade anecdotes (and you frequently do) but I give more credence to unbiased data. It doesn't pay to be timid. Man up. Why take the risk when there are alternatives such as this? https://goo.gl/maps/XJk1gMRC2eA2 Here's why I "take the risk," Joerg. First, the risk of being hit while riding lane center is extremely low. Most of those hit that way seem to be unlit cyclists riding at night, probably drunk or nearly so. Data's a bit soft, but that does seem to be what it shows. But more important: If I waited for "alternatives" such as the one you show to be built, I would have missed about 45 years of enthusiastic adult riding. I'd have missed riding in about a dozen different countries, 47 states and hundreds of different towns and cities. I wouldn't have been able to ride my bike to work at four different jobs. I'd have missed wonderful vacations with my family, and I'd have missed making at least a hundred good cycling friends. I know many people have bought the "Danger! Danger!" mantra and never leave the nice, safe (and horridly boring) bike path. I chose instead to learn to be competent on ordinary roads. And I'm damned glad I did. We pretty much agree with this. I don't have to worry any more about riding a bike around dangerous drivers than I would driving a car. But that is a clear and present danger because the police no longer enforce driving laws. Yesterday I was driving up the street and some woman pulls a large SUV out of her driveway directly in front of me forcing me to slam the brakes on. It is common for women especially to pull out of parking lots or other driveways looking to the right when traffic comes from the left. With me that happened yesterday. School bus from the other side, driver backed out of driveway with gusto into the school bus' path, the bus driver swerved around and into my lane. If I had been lane center I'd be in the hospital or morgue today. Luckily I rode AFRAP, the hydraulic brakes of my MTB came on prontissimo and I was able to leave the road without crashing because, well, it was an MTB. Yes, the offending driver was a woman but I've seen guys do that as well. She was visibly shaken by all that. Gee Joerg, you must be riding on very crooked roads. The city streets I ride on are straight enough that I can see, oh probably 50 feet in front of me, and by watching I can see vehicles, way down the road, that might be meaning to drive out into traffic and even braking by dragging your feet lets you slow down enough to avoid them. We have something out here called vegetation. You know, the stuff with the leaves on it. My eyes have not yet developed Radar capabilities to see a car shooting out of a steep driveway in reverse gear. Obviously the eyes of the bus driver hadn't either and the bus was also not equipped with collision avoidance Radar. [...] -- Regards, Joerg http://www.analogconsultants.com/ |
#296
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Why do some forks and frames have brake rotor size limits?
On 2017-11-01 19:23, John B. wrote:
On Wed, 01 Nov 2017 13:56:24 -0700, Joerg wrote: On 2017-11-01 13:39, wrote: On Wednesday, November 1, 2017 at 12:35:34 PM UTC-7, Joerg wrote: A lever is never supposed to bottom out before the brake force on respective wheel is maxed. If it did then he'd have faulty brakes and I am sure he'd not have posted this. The guys look like serious cyclists who know this. How old are you again Joerg? With even the old Campy brakes it was possible to bottom out the levers often without locking the wheels. I clearly consider that a faulty brake system. In Germany they would instantly disqualify a motor vehicle with such a flaw and not even let you ride it off the TUEV test site. But Jeorg, you aren't in Germany. So that makes it ok to tool around in traffic with faulty equipment? -- Regards, Joerg http://www.analogconsultants.com/ |
#297
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Why do some forks and frames have brake rotor size limits?
On 2017-11-01 20:51, wrote:
On Wednesday, November 1, 2017 at 2:18:04 PM UTC-7, jbeattie wrote: On Wednesday, November 1, 2017 at 1:57:15 PM UTC-7, AMuzi wrote: On 11/1/2017 3:39 PM, wrote: On Wednesday, November 1, 2017 at 12:35:34 PM UTC-7, Joerg wrote: A lever is never supposed to bottom out before the brake force on respective wheel is maxed. If it did then he'd have faulty brakes and I am sure he'd not have posted this. The guys look like serious cyclists who know this. How old are you again Joerg? With even the old Campy brakes it was possible to bottom out the levers often without locking the wheels. Delta maybe but not the classic forged-arm sidepull. Well adjusted, they had good stopping power -- particularly the short reach. I used standard reach NR side-pulls on my touring bike all the way across the US and on many tours. Great stopping even fully loaded -- using some of the Scott-Mathauser brake pads. The cooling fins made me go faster. Four years ago when I was recovering and putting bikes together I had a super record set on a steel bike of some sort and they would bottom out bending the arms. Now they were long arm brakes but they did bottom out. If you could still turn the wheels while bottomed out do not ride that bike. -- Regards, Joerg http://www.analogconsultants.com/ |
#298
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Why do some forks and frames have brake rotor size limits?
On 2017-10-31 14:46, wrote:
[...] Anyway, on this ride with relatively light traffic I had a half dozen people turn left in front of me or pass me and turn right in each case requiring me to slam on the brakes. Even though there was no reason for them to do so. There wasn't a line of traffic that they were trying to beat or they didn't have cars behind them honking. I simply can't understand what the hell is going on with drivers. Distraction. Try a big bright front light, on at all times except on bike paths. That has made a significant difference for me. I guess they think a motorcycle is coming. I had a wimpy front light at first and that didn't do much but with over 7W on the LED in the current light that sure gets the attention. I have these on both bikes. I'd also like an Airzound horn but there is hardly any space left to mount that and its container. Of course, there will always be an even better light :-) https://www.youtube.com/watch?v=w7RUdUfr-Io -- Regards, Joerg http://www.analogconsultants.com/ |
#299
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Why do some forks and frames have brake rotor size limits?
On Fri, 03 Nov 2017 07:53:04 -0700, Joerg
wrote: On 2017-11-01 19:23, John B. wrote: On Wed, 01 Nov 2017 13:56:24 -0700, Joerg wrote: On 2017-11-01 13:39, wrote: On Wednesday, November 1, 2017 at 12:35:34 PM UTC-7, Joerg wrote: A lever is never supposed to bottom out before the brake force on respective wheel is maxed. If it did then he'd have faulty brakes and I am sure he'd not have posted this. The guys look like serious cyclists who know this. How old are you again Joerg? With even the old Campy brakes it was possible to bottom out the levers often without locking the wheels. I clearly consider that a faulty brake system. In Germany they would instantly disqualify a motor vehicle with such a flaw and not even let you ride it off the TUEV test site. But Jeorg, you aren't in Germany. So that makes it ok to tool around in traffic with faulty equipment? Goodness! You mean that if it isn't acceptable in Germany it is automatically faulty and absolutely cannot be used in the rest of the world? Somehow, I don't think that you are correct. -- Cheers, John B. |
#300
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Why do some forks and frames have brake rotor size limits?
On Friday, November 3, 2017 at 8:47:34 PM UTC-4, John B. wrote:
On Fri, 03 Nov 2017 07:53:04 -0700, Joerg wrote: On 2017-11-01 19:23, John B. wrote: On Wed, 01 Nov 2017 13:56:24 -0700, Joerg wrote: On 2017-11-01 13:39, wrote: On Wednesday, November 1, 2017 at 12:35:34 PM UTC-7, Joerg wrote: A lever is never supposed to bottom out before the brake force on respective wheel is maxed. If it did then he'd have faulty brakes and I am sure he'd not have posted this. The guys look like serious cyclists who know this. How old are you again Joerg? With even the old Campy brakes it was possible to bottom out the levers often without locking the wheels. I clearly consider that a faulty brake system. In Germany they would instantly disqualify a motor vehicle with such a flaw and not even let you ride it off the TUEV test site. But Jeorg, you aren't in Germany. So that makes it ok to tool around in traffic with faulty equipment? Goodness! You mean that if it isn't acceptable in Germany it is automatically faulty and absolutely cannot be used in the rest of the world? Somehow, I don't think that you are correct. -- Cheers, John B. I often wonder, after hearing ex-pat Germans complaining about how bad things are in their new country compared to back in Germany, why they left Germany in the first place. Cheers |
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