Exercise R Us

Question:

I had a similar problem with some Manitou 4’s I was using.  I fixed it by installing some Growler brand lock nuts on the hub which have a really large contact area with the fork’s dropouts.  It made a very real, noticeable difference.  I paid about $13 for them at my loal bike shop.

Response:

What kind of front hub does the bike have?  The wheel is flexing, and that is why your brakes are rubbing.  It is not cheap, but I would recommend having a good suspension hub built.  I have a Q21R, and a Ringle Superbubba front hub with a mavic 231 rim, and I have had no problems.  My brother only has an LX hub, and his rubs all of the time. Seth Bush – Hide quoted text — Show quoted text – > I recently bought a GT Avalanche which is comes with Quadra 21R.  Now > that I’ve put about 100 miles on it I’m noticing my front brakes rubbing > every time I turn.  I took it back to the bike shop, which is known here > for its excellent service, and they told me that it was probably the > lesser of two evils.  That is, either occaisional rubbing or loosening > the front brakes and thereby reducing performance.   > Might another option be getting stiffer elastomer thing-a-ma-bobbers ??   > Are there any other stiffness hints that someone could offer (short of > buying a new shock) ? > Orf.

Response:

: I recently bought a GT Avalanche which is comes with Quadra 21R.  Now : that I’ve put about 100 miles on it I’m noticing my front brakes rubbing : every time I turn.  I took it back to the bike shop, which is known here : for its excellent service, and they told me that it was probably the : lesser of two evils.  That is, either occaisional rubbing or loosening : the front brakes and thereby reducing performance.   They are right.  This happens to most of the telescopic forks. : Might another option be getting stiffer elastomer thing-a-ma-bobbers ??   : Are there any other stiffness hints that someone could offer (short of : buying a new shock) ? Get a better brake bridge, it will increase the rigidity of the only link between the two independently moving legs, also, adding a brake booster won’t be a bad idea either.  I will try the booster, than the bridge($ vs$$$) Vince — — Vincent Cheng         University Of Alberta         1st year Engineering Maintainer for Mountain Biking FAQ*http://www.ualberta.ca/~vccheng/faq.html Edmonton Bicycle Commuters Society*http://www.ualberta.ca/~vccheng/ebc.html Columnist for Gearhead MTB e-zine*http://www.gearhead.com/

Response:

Try putting a brake booster on.  You should notice a substantial change both in the flexing of the fork legs and in your braking power. – Hide quoted text — Show quoted text ->I recently bought a GT Avalanche which is comes with Quadra 21R.  Now >that I’ve put about 100 miles on it I’m noticing my front brakes rubbing >every time I turn.  I took it back to the bike shop, which is known here >for its excellent service, and they told me that it was probably the >lesser of two evils.  That is, either occaisional rubbing or loosening >the front brakes and thereby reducing performance.   >Might another option be getting stiffer elastomer thing-a-ma-bobbers ??   >Are there any other stiffness hints that someone could offer (short of >buying a new shock) ?

Response:

I recently bought a GT Avalanche which is comes with Quadra 21R.  Now that I’ve put about 100 miles on it I’m noticing my front brakes rubbing every time I turn.  I took it back to the bike shop, which is known here for its excellent service, and they told me that it was probably the lesser of two evils.  That is, either occaisional rubbing or loosening the front brakes and thereby reducing performance.   Might another option be getting stiffer elastomer thing-a-ma-bobbers ??   Are there any other stiffness hints that someone could offer (short of buying a new shock) ? Orf.

Response:

>I recently bought a GT Avalanche which is comes with Quadra 21R.  Now >that I’ve put about 100 miles on it I’m noticing my front brakes rubbing >every time I turn.  I took it back to the bike shop, which is known here >for its excellent service, and they told me that it was probably the >lesser of two evils.  That is, either occaisional rubbing or loosening >the front brakes and thereby reducing performance.   >Might another option be getting stiffer elastomer thing-a-ma-bobbers ??   >Are there any other stiffness hints that someone could offer (short of >buying a new shock) ? >Orf.

Put a brake booster on the front shock. It should help to take care of the problem assuming that everything else is set up properly. -Sandman-

Response: