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#11
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On Mon, 26 Mar 2018 13:57:31 -0700, sms
wrote: Grant Petersen was right. https://www.rivbike.com/pages/disc-brakes Well, he kinda often is... |
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#12
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On Monday, March 26, 2018 at 8:42:44 PM UTC-7, Tim McNamara wrote:
On Mon, 26 Mar 2018 13:57:31 -0700, sms wrote: Grant Petersen was right. https://www.rivbike.com/pages/disc-brakes Well, he kinda often is... He's right for him. Personally, I think his bikes look like Victorian reproductions. https://78.media.tumblr.com/79e9dcf8...3ngpo8_540.jpg Not that I hate steel, but if I were buying a steel all-in-one bike, I'd get one with discs because I ride in the rain a lot -- most days this time of year. You have more choices with tires and can even switch between wheels sizes if that's your thing. Cable discs are easy to install and maintain although pad life is shorter. Hydraulics are awesome but you have to do some plumbing and the concept of a hydraulic system on a bike may be too much for some. -- Jay Beattie. |
#13
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On 2018-03-27 07:08, jbeattie wrote:
On Monday, March 26, 2018 at 8:42:44 PM UTC-7, Tim McNamara wrote: On Mon, 26 Mar 2018 13:57:31 -0700, sms wrote: Grant Petersen was right. https://www.rivbike.com/pages/disc-brakes Well, he kinda often is... He's right for him. Personally, I think his bikes look like Victorian reproductions. https://78.media.tumblr.com/79e9dcf8...3ngpo8_540.jpg Not that I hate steel, but if I were buying a steel all-in-one bike, I'd get one with discs because I ride in the rain a lot -- most days this time of year. Hard rain or hail like here on Sunday is the worst. It seems to splatter up whatever gunk in on the surface and then the rim brake pads try to massage that into the aluminum. It becomes evident when stopping under a bridge and seeing "fuzz" on the rim end of the spokes but none towards the hub. ... You have more choices with tires and can even switch between wheels sizes if that's your thing. Cable discs are easy to install and maintain although pad life is shorter. Hydraulics are awesome but you have to do some plumbing and the concept of a hydraulic system on a bike may be too much for some. Hydraulics also can suffer from sudden fade and that's scary. Then they require bleeding which, depending on the kind, is a messy business. On mine particularly so because there is no bleed kit for them. Cable disc brakes are fine for pavement riding, just not for heavy duty MTB riding. -- Regards, Joerg http://www.analogconsultants.com/ |
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On 3/26/2018 3:27 PM, Joerg wrote:
On 2018-03-26 15:11, Frank Krygowski wrote: On 3/26/2018 5:42 PM, Joerg wrote: On 2018-03-26 13:57, sms wrote: On 3/26/2018 12:15 PM, Joerg wrote: Remember when some folks here scoffed at that risk? Bernd Ullrich in the German language bike NG posted this link but it is in German: http://www.rp-online.de/panorama/aus...-aid-1.7479241 Here are link with photos and a video of the fi http://www.vol.at/vorarlberg-waldbra...rsberg/5722558 http://vorarlberg.orf.at/news/stories/2903197/ Long story short it says that a Swiss MTB rider parked his MTB in grass after a downhill ride. Then ... phut ... smoke and flames. He and two other guys were unable to put out the fast-spreading fire. Two helicopters over 100 fire fighters were required to get this under control. Grant Petersen was right. https://www.rivbike.com/pages/disc-brakes Quote "But the idea that hub-disc brakes are an advancement or even desirable for general purpose riding ... is nonsense" If that's really his reasoning then he hasn't got a clue. Yesterday I coasted back down a hill with a friend and a nasty hail storm set in. He had disc brakes and could always stop on a dime. I was on my road bike with rim brakes and they started to fail miserably. I had to keep them partially engaged almost the whole time to make sure I had enough brake actions when needed. You had to squeeze your levers almost the whole time? Oh, the humanity! It's not the squeezing, it's the constant grinding noise. Grinding noise + several miles = rim abrasion. Disc brakes are simply superior in that and many other domains. I still have a Arai drum brake wheel for my Trek tandem. For long steep descents on a tandem, you really have to watch out for rims heating to the point where you can get a blowout. I suspect that not many non-disc brake tandems, other than the el-cheapo BSO tandems, are being sold anymore. Santana does have one entry-level model where the disc brake is optional. |
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On 2018-03-27 09:54, sms wrote:
On 3/26/2018 3:27 PM, Joerg wrote: On 2018-03-26 15:11, Frank Krygowski wrote: On 3/26/2018 5:42 PM, Joerg wrote: On 2018-03-26 13:57, sms wrote: On 3/26/2018 12:15 PM, Joerg wrote: Remember when some folks here scoffed at that risk? Bernd Ullrich in the German language bike NG posted this link but it is in German: http://www.rp-online.de/panorama/aus...-aid-1.7479241 Here are link with photos and a video of the fi http://www.vol.at/vorarlberg-waldbra...rsberg/5722558 http://vorarlberg.orf.at/news/stories/2903197/ Long story short it says that a Swiss MTB rider parked his MTB in grass after a downhill ride. Then ... phut ... smoke and flames. He and two other guys were unable to put out the fast-spreading fire. Two helicopters over 100 fire fighters were required to get this under control. Grant Petersen was right. https://www.rivbike.com/pages/disc-brakes Quote "But the idea that hub-disc brakes are an advancement or even desirable for general purpose riding ... is nonsense" If that's really his reasoning then he hasn't got a clue. Yesterday I coasted back down a hill with a friend and a nasty hail storm set in. He had disc brakes and could always stop on a dime. I was on my road bike with rim brakes and they started to fail miserably. I had to keep them partially engaged almost the whole time to make sure I had enough brake actions when needed. You had to squeeze your levers almost the whole time? Oh, the humanity! It's not the squeezing, it's the constant grinding noise. Grinding noise + several miles = rim abrasion. Disc brakes are simply superior in that and many other domains. I still have a Arai drum brake wheel for my Trek tandem. For long steep descents on a tandem, you really have to watch out for rims heating to the point where you can get a blowout. IIRC it's a long volcano descent in Hawaii where they only rent out drum brake bicycles to avoid problems with overheated brakes. I suspect that not many non-disc brake tandems, other than the el-cheapo BSO tandems, are being sold anymore. They shouldn't be. I remember an executive retreat where one of the team-building exercises was tandem riding with someone you do not often interact with at the company. So here we were, both proud members of the 0.1-ton class, lumbering down a long hill. We were the bicycle equivalent of a full propane truck. At some point a stench came from the front rim brake rubbers. You should have seen some of the teams where neither rider was a cyclist. Priceless. However, laughing at other teams was not allowed. ... Santana does have one entry-level model where the disc brake is optional. One guy on the German NG has disc brakes plus a rim brake on the rear for extra braking power. That makes a lot of sense on a vacation trip with extra cargo. -- Regards, Joerg http://www.analogconsultants.com/ |
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On 3/27/2018 12:54 PM, sms wrote:
I still have a Arai drum brake wheel for my Trek tandem. For long steep descents on a tandem, you really have to watch out for rims heating to the point where you can get a blowout. I suspect that not many non-disc brake tandems, other than the el-cheapo BSO tandems, are being sold anymore. Santana does have one entry-level model where the disc brake is optional. Popularity isn't usually driven by practicality. It's usually driven more by fashion. Tattoos, ripped jeans, aero sunglasses, carbon fiber everything, minipumps and disc brakes are nearly always fashion choices. They're hardly different than new hairstyles. Jay mentions riding in Oregon rain for decades using rim brakes. We've ridden our tandem with only rim brakes for decades. We've had no problems at all. Full disclosu The tandem was a custom build, with the builder (Jim Bradford) also supplying and installing all the components. I asked for a double-threaded Phil rear hub so I could install a hub brake if I decided I needed it. Bradford said it wasn't necessary, that he and his fiance had toured the Alps on one of his tandems with only cantilever rim brakes. I've never toured the Alps, but our tandem has never needed more brakes. Which is good, because one of his many mistakes on this bike was supplying a rear hub without the brake threading. -- - Frank Krygowski |
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On 28/03/18 01:39, Joerg wrote:
Hydraulics also can suffer from sudden fade and that's scary. Then they require bleeding which, depending on the kind, is a messy business. On mine particularly so because there is no bleed kit for them. Cable disc brakes are fine for pavement riding, just not for heavy duty MTB riding. With the use of a few hose clamps, a file that is harder than tool steel, nails and rocks, I'm sure you could build a front wheel for your MTB using a motorcycle front hub, disc brake and lever. -- JS |
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On 2018-03-28 20:28, James wrote:
On 28/03/18 01:39, Joerg wrote: Hydraulics also can suffer from sudden fade and that's scary. Then they require bleeding which, depending on the kind, is a messy business. On mine particularly so because there is no bleed kit for them. Cable disc brakes are fine for pavement riding, just not for heavy duty MTB riding. With the use of a few hose clamps, a file that is harder than tool steel, nails and rocks, I'm sure you could build a front wheel for your MTB using a motorcycle front hub, disc brake and lever. After upgrading to 8" rotors front and back I am quite pleased with the brake performance of my MTB. The bleeding is messy but only needs to be done about once a year and takes 1/2h. -- Regards, Joerg http://www.analogconsultants.com/ |
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On 3/27/2018 7:39 AM, Joerg wrote:
Hydraulics also can suffer from sudden fade and that's scary. Then they require bleeding which, depending on the kind, is a messy business. On mine particularly so because there is no bleed kit for them. Cable disc brakes are fine for pavement riding, just not for heavy duty MTB riding. Avoid hydraulic disc brakes at all costs. Stick to mechanical disc brakes. |
#20
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On 2018-03-29 09:24, sms wrote:
On 3/27/2018 7:39 AM, Joerg wrote: Hydraulics also can suffer from sudden fade and that's scary. Then they require bleeding which, depending on the kind, is a messy business. On mine particularly so because there is no bleed kit for them. Cable disc brakes are fine for pavement riding, just not for heavy duty MTB riding. Avoid hydraulic disc brakes at all costs. Stick to mechanical disc brakes. They are not powerful enough for MTB with large riders and some cargo. Also, many mechanical systems only have a piston on one side which over time results in the rotor being bent sideways when braking. After having ridden offroad with rim brakes, mechanical discs and hydraulic disks I found hydraulic discs to be far superior and never looked back. For road bikes machanical discs should suffice. IF I ever need a new one I will make 100% sure it does not have rim brakes. -- Regards, Joerg http://www.analogconsultants.com/ |
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