|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
"Actually you are the first person to bring up this issue"
It's now a year since the QR/disk brake problem hit the headlines, and I
thought some of you might be interested in hearing how the manufacturers are dealing with it. A few weeks ago, yet another rider who had just upgraded to disk brakes found that he couldn't reliably keep his wheel stationary in the dropouts under heavy braking. So far, so normal. Having found my web page, he then did what it seems no mountain biker before him has bothered to do, and asked the manufacturers for advice. In all, he spoke to Answer (Manitou), Fox Racing, and also Avid and Chris King. The clever ones will already have worked out where the subject line came from. Yes, to a man (actually, 3 men and one woman), they all insisted that he was the first person to have ever brought this up with them, and no, they had no plans to do anything about it, because no-one else ever had this problem. One of them (Avid) did say that it was obviously dangerous and he should not ride the bike in that state, but had no useful suggestion as to what he could do to make it safe. So there you have it. At this rate, by the time next year's complaint comes in, they will presumably have forgotten this first one. How convenient for them. Those who thought that it wouldn't do to kick up a fuss because the poor manufacturers were doing their best, may wish to re-examine their approach. Or else studiously ignore this post in the vain hope that the problem will go away. James |
Ads |
#2
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"James Annan" wrote in message ... It's now a year since the QR/disk brake problem hit the headlines, and I thought some of you might be interested in hearing how the manufacturers are dealing with it. A few weeks ago, yet another rider who had just upgraded to disk brakes found that he couldn't reliably keep his wheel stationary in the dropouts under heavy braking. So far, so normal. Having found my web page, he then did what it seems no mountain biker before him has bothered to do, and asked the manufacturers for advice. In all, he spoke to Answer (Manitou), Fox Racing, and also Avid and Chris King. The clever ones will already have worked out where the subject line came from. Yes, to a man (actually, 3 men and one woman), they all insisted that he was the first person to have ever brought this up with them, and no, they had no plans to do anything about it, because no-one else ever had this problem. One of them (Avid) did say that it was obviously dangerous and he should not ride the bike in that state, but had no useful suggestion as to what he could do to make it safe. So there you have it. At this rate, by the time next year's complaint comes in, they will presumably have forgotten this first one. How convenient for them. Those who thought that it wouldn't do to kick up a fuss because the poor manufacturers were doing their best, may wish to re-examine their approach. Or else studiously ignore this post in the vain hope that the problem will go away. James ....or come back to rim brakes ;-) |
#3
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"(t'other) Dave" wrote in message ... "James Annan" wrote in message ... It's now a year since the QR/disk brake problem hit the headlines, and I thought some of you might be interested in hearing how the manufacturers are dealing with it. A few weeks ago, yet another rider who had just upgraded to disk brakes found that he couldn't reliably keep his wheel stationary in the dropouts under heavy braking. So far, so normal. Having found my web page, he then did what it seems no mountain biker before him has bothered to do, and asked the manufacturers for advice. In all, he spoke to Answer (Manitou), Fox Racing, and also Avid and Chris King. The clever ones will already have worked out where the subject line came from. Yes, to a man (actually, 3 men and one woman), they all insisted that he was the first person to have ever brought this up with them, and no, they had no plans to do anything about it, because no-one else ever had this problem. One of them (Avid) did say that it was obviously dangerous and he should not ride the bike in that state, but had no useful suggestion as to what he could do to make it safe. So there you have it. At this rate, by the time next year's complaint comes in, they will presumably have forgotten this first one. How convenient for them. Those who thought that it wouldn't do to kick up a fuss because the poor manufacturers were doing their best, may wish to re-examine their approach. Or else studiously ignore this post in the vain hope that the problem will go away. James ...or come back to rim brakes ;-) Infidel! Heretic! Hiccup! Shaun aRe |
#4
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"James Annan" wrote in message ... It's now a year since the QR/disk brake problem hit the headlines, and I thought some of you might be interested in hearing how the manufacturers are dealing with it. Well I've not had a problem yet but I do make sure the standard Shimano skewers are very tight. Also I've noticed the "Lawyer Lips" on my new Rockshox seem particularly generous, I don't know if that's just a fluke or deliberate to help address the (alleged) problem. -- Regards, Pete |
#5
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"Peter B" wrote in message
... Well I've not had a problem yet but I do make sure the standard Shimano skewers are very tight. We use thru-axles and pinch bolts on a majority of our bikes. It solves the problem on having to worry if the QR is tight enough or not. - CA-G Can-Am Girls Kick Ass! |
#6
|
|||
|
|||
"Actually you are the first person to bring up this issue"
On Fri, 19 Mar 2004 14:50:19 +0000, Peter B wrote:
Well I've not had a problem yet but I do make sure the standard Shimano skewers are very tight. Is there such a thing as too tight? Is there a danger of the skewer being over-stressed and being more likely to fail? -- a.m-b FAQ: http://www.j-harris.net/bike/ambfaq.htm a.bmx FAQ: http://www.t-online.de/~jharris/bmx_faq.htm |
#7
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"bomba" wrote in message
news On Fri, 19 Mar 2004 14:50:19 +0000, Peter B wrote: Well I've not had a problem yet but I do make sure the standard Shimano skewers are very tight. Is there such a thing as too tight? Is there a danger of the skewer being over-stressed and being more likely to fail? With quick-release, if you have the skewers too tight, they can make the hub bearings bind. Giant's bike manual suggested that the levers were too loose if closing them didn't leave an imprint in my palm. Doing so meant the wheels stopped rotating within about 3/4 revolution, compared to around 20 when loose. Jon --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.624 / Virus Database: 401 - Release Date: 15/03/2004 |
#8
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"James Annan" wrote in message ... It's now a year since the QR/disk brake problem hit the headlines, and I thought some of you might be interested in hearing how the manufacturers are dealing with it. ....or not, as the case appears to be. Have you contacted someone like Watchdog (UK consumer affairs program, for the non-UK readers on the x-post) to see if they are interested. There has been a reasonable amount of publicity /within the interested groups/, which are, unfortunately, regarded as a weird minority by the public, but your average Joe Punter who buys a supermarket y-frame full-sus brick won't have read this, and poor though they may be, discs are starting to appear on these - and the users may not know (how) to check that their QRs are tight. E |
#9
|
|||
|
|||
"Actually you are the first person to bring up this issue"
Jon Senior wrote:
With quick-release, if you have the skewers too tight, they can make the hub bearings bind. Giant's bike manual suggested that the levers were too loose if closing them didn't leave an imprint in my palm. Doing so meant the wheels stopped rotating within about 3/4 revolution, compared to around 20 when loose. That's only true if the hub bearings are misadjusted. With properly adjusted quick-release hubs, there's slight looseness in the axle bearings when the skewer is not connected, and when the skewer is properly tightened, this slack is taken up without causing the bearings to bind. See: http://sheldonbrown.com/cones Sheldon "Insert Nickname Here" Brown +-------------------------------------------------+ | To stay young requires unceasing cultivation | | of the ability to unlearn old falsehoods. | | --Robert A. Heinlein | +-------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
#10
|
|||
|
|||
"Actually you are the first person to bring up this issue"
"Jon Senior" jon_AT_restlesslemon.co.uk wrote in message ... "bomba" wrote in message news On Fri, 19 Mar 2004 14:50:19 +0000, Peter B wrote: Well I've not had a problem yet but I do make sure the standard Shimano skewers are very tight. Is there such a thing as too tight? Is there a danger of the skewer being over-stressed and being more likely to fail? With quick-release, if you have the skewers too tight, they can make the hub bearings bind. Giant's bike manual suggested that the levers were too loose if closing them didn't leave an imprint in my palm. Doing so meant the wheels stopped rotating within about 3/4 revolution, compared to around 20 when loose. Jon QR skewers certainly tighten the bearings, although it's something that's always bemused me somewhat; how do they make so much difference when the cones are locked onto a pretty un-compressable axle? I suppose it's just that very, very little movement of the cones on the axle is required to make a difference. Anyway, it's a normal effect, and needs to be taken account of when setting the cones. There should actually be a little play before the QR skewer is fastened. Not doing skewers up tightly isn't a good idea, although I think the imprint in the palm is a *bit* extreme! --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.634 / Virus Database: 406 - Release Date: 18/03/2004 |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
An open letter to Lance Armstrong | DiabloScott | Racing | 19 | August 2nd 04 01:16 AM |
"Actually you are the first person to bring up this issue" | James Annan | Techniques | 848 | April 6th 04 08:49 PM |
"Actually you are the first person to bring up this issue" | James Annan | Mountain Biking | 428 | April 4th 04 08:59 PM |