#101
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11 speed gears
On 2016-03-08 10:59, Lou Holtman wrote:
Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? -- Regards, Joerg http://www.analogconsultants.com/ |
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#102
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11 speed gears
On 3/8/2016 12:35 PM, Joerg wrote:
On 2016-03-08 10:09, Joe Riel wrote: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. Not sure what that means. I can't make out a P/N on there because it's all scraped up but it is a "A-Class Wheels" QR. The cam is part of the handle and I set it so it takes almost all my strength to shut it despite being well greased with mounting paste. That's the only way it has enough force to (barely) withstand the braking forces. As Mr Riel noted, the closed-cam (usually steel bell) design gives a lot more clamping pressure for a given hand force than the open ( usually aluminum) style. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#103
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11 speed gears
On 3/8/2016 1:08 PM, Joerg wrote:
On 2016-03-08 10:59, Lou Holtman wrote: Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? Here's a current model Tacx: http://www.labicicletta.com/media/ca...ase-skewer.jpg Any QR of that style (from about 1930 to present) in any brand. Oil cam, go ride; they just work better. For those (and I am one) who obsess over small things, these were best for clamping leverage: file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/3826331350_2ff31a16ca_b.jpg but god luck finding one now. As Mr Holtman and Mr Riel already mentioned, throw out your QRs with aluminum open cam. They suck. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#104
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11 speed gears
On 2016-03-08 11:22, AMuzi wrote:
On 3/8/2016 12:35 PM, Joerg wrote: On 2016-03-08 10:09, Joe Riel wrote: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. Not sure what that means. I can't make out a P/N on there because it's all scraped up but it is a "A-Class Wheels" QR. The cam is part of the handle and I set it so it takes almost all my strength to shut it despite being well greased with mounting paste. That's the only way it has enough force to (barely) withstand the braking forces. As Mr Riel noted, the closed-cam (usually steel bell) design gives a lot more clamping pressure for a given hand force than the open ( usually aluminum) style. Ok, that explains it, then mine is open cam. It's aluminum and the handle itself is the cam via being slightly excentric around the pivot points. -- Regards, Joerg http://www.analogconsultants.com/ |
#105
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11 speed gears
Joerg wrote:
On 2016-03-08 10:59, Lou Holtman wrote: Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? They don't get any better than these, only shinier and more expensive https://www.bike-components.de/de/Sh...spanner-p7418/ -- Lou |
#106
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11 speed gears
On 2016-03-08 11:30, AMuzi wrote:
On 3/8/2016 1:08 PM, Joerg wrote: On 2016-03-08 10:59, Lou Holtman wrote: Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? Here's a current model Tacx: http://www.labicicletta.com/media/ca...ase-skewer.jpg Any QR of that style (from about 1930 to present) in any brand. Oil cam, go ride; they just work better. Aha, thanks. That's the old style Shimano and I have those on my road bike. Makes it easy, I can just swap'em. The road bike has rim brakes so no concern about the axle coming out. It should be happy with the MTB QR. Of course, the Shimano purists would then say that I defiled the classic Shimano 600 equipment on my vintage road bike, grupo or whatever they call that these days :-) For those (and I am one) who obsess over small things, these were best for clamping leverage: file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/3826331350_2ff31a16ca_b.jpg but god luck finding one now. This tries to access your computer's hard drive which won't work and I wouldn't do that anyhow :-) As Mr Holtman and Mr Riel already mentioned, throw out your QRs with aluminum open cam. They suck. Seems they sure do even after I oiled it and all. It simply won't hold the front axle in place. By now the fork might be too far worn inside the left drop-out though. It has about 3000 (hard) miles on it with the stock QR and I've gone through 4-5 sets of brake pads in that time. -- Regards, Joerg http://www.analogconsultants.com/ |
#107
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11 speed gears
On 2016-03-08 11:49, Lou Holtman wrote:
Joerg wrote: On 2016-03-08 10:59, Lou Holtman wrote: Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? They don't get any better than these, only shinier and more expensive https://www.bike-components.de/de/Sh...spanner-p7418/ Thanks. I have those in the Shimano 600 set on my old road bike so I'll just swap that with the MTB. The road bike has rim brakes so the QR strength doesn't really matter there. The black MTB QR will look odd on it but, oh well. -- Regards, Joerg http://www.analogconsultants.com/ |
#108
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11 speed gears
On 3/8/2016 1:55 PM, Joerg wrote:
On 2016-03-08 11:30, AMuzi wrote: On 3/8/2016 1:08 PM, Joerg wrote: On 2016-03-08 10:59, Lou Holtman wrote: Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Do you have a part number for the Shimano QR? I'd need one with the utmost force, higher = better. One concern I always have is those little threads on the nut on the other side, that I might strip them out. But maybe that isn't so critical? Here's a current model Tacx: http://www.labicicletta.com/media/ca...ase-skewer.jpg Any QR of that style (from about 1930 to present) in any brand. Oil cam, go ride; they just work better. Aha, thanks. That's the old style Shimano and I have those on my road bike. Makes it easy, I can just swap'em. The road bike has rim brakes so no concern about the axle coming out. It should be happy with the MTB QR. Of course, the Shimano purists would then say that I defiled the classic Shimano 600 equipment on my vintage road bike, grupo or whatever they call that these days :-) For those (and I am one) who obsess over small things, these were best for clamping leverage: file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/3826331350_2ff31a16ca_b.jpg but god luck finding one now. This tries to access your computer's hard drive which won't work and I wouldn't do that anyhow :-) As Mr Holtman and Mr Riel already mentioned, throw out your QRs with aluminum open cam. They suck. Seems they sure do even after I oiled it and all. It simply won't hold the front axle in place. By now the fork might be too far worn inside the left drop-out though. It has about 3000 (hard) miles on it with the stock QR and I've gone through 4-5 sets of brake pads in that time. sorry I blew that. Yes it downloaded. Ooops, try this: https://www.flickr.com/photos/stronglight/3826331350 -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#109
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11 speed gears
On 2016-03-08 12:15, AMuzi wrote:
On 3/8/2016 1:55 PM, Joerg wrote: On 2016-03-08 11:30, AMuzi wrote: [...] As Mr Holtman and Mr Riel already mentioned, throw out your QRs with aluminum open cam. They suck. Seems they sure do even after I oiled it and all. It simply won't hold the front axle in place. By now the fork might be too far worn inside the left drop-out though. It has about 3000 (hard) miles on it with the stock QR and I've gone through 4-5 sets of brake pads in that time. sorry I blew that. Yes it downloaded. Ooops, try this: https://www.flickr.com/photos/stronglight/3826331350 Thanks. That looks even more classic than the stuff on my early 80's road bike. http://www.ebay.com/itm/SHIMANO-600-...AOSwll1W1Xh Z So if I understand correctly that would count as "the good stuff". -- Regards, Joerg http://www.analogconsultants.com/ |
#110
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11 speed gears
On 3/8/2016 1:59 PM, Lou Holtman wrote:
Op 8-3-2016 om 19:09 schreef Joe Riel: Joerg writes: On 2016-03-07 17:53, jbeattie wrote: On Friday, March 4, 2016 at 10:55:52 AM UTC-8, Joerg wrote: On 2016-03-04 09:33, sms wrote: On 3/4/2016 8:02 AM, Joerg wrote: snip But this does not solve the problem that the brake caliper is in the wrong position for bikes with QR axles. Ironically, there are BMX front forks with the brake caliper in the front, but these don't have QR axles. Since there are other ways of solving the problem they probably saw no reason to move the caliper. It hasn't been solved. There are still tons of MTB and cyclocross bikes delivered with QR and with the caliper in back of the fork. All of them have the caliper in back of the fork AFAIK because the manufacturers don't want to rely on bolt tension to keep the caliper attached to the fork. Bolts can break, and putting the caliper on the front creates a different danger -- and the problem with wheel ejection was solved ten years ago with through-axles and reshaped front dropouts. The world is now safe. Amen. The screws would be stressed mostly in sheer direction just like they are now. With the forces at play here it would be tough to strip one of those big screws. -- Jay Beattie. PS -- Google "James Annan" -- he's the man who blew the lid off BIG DISK and disclosed the giant wheel ejection conspiracy. All I found was some warmingist stuff. Anyhow, I know for a fact that my MTB front axle tried to come out and has gouged the inside of the left drop-out, big time. Despite the QR being real tied (I check that often). Do you have a decent quick-release? The ones with external cams frequently exert much less clamping force than those with internal cams. +1. The first thing I do is when I get a new bike or wheels with external cam QR is get rid of them and replace them with simple Shimano internal one. I have a whole drawer with external cam QR by now. DT swiss, Hope, Mavic all utter junk. The force you feel when closing them tells you nothing about the clamping force exerted. Another +1 here. And I agree with Andrew's advice to oil the cam, even on the internal cam models. It's made a big difference for me in the past. -- - Frank Krygowski |
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