Disc Rubbing on Avid Juicys

darren555

The rear disc on my Avid Juicy 4RSL is rubbing against the callipers. I have slackened off the calliper bolts & retightened whilst holding the brake lever on but it's no better. I cannot see any obvious warping.

Anyone help?

elPedro666

Rubbing constantly, or on/off as the wheel spins? If the rotor's definately straight then have a look at the HopeTechnology.com for set up videos (same principal). Also check that the pads/pistons are retracting properly into the calliper, maybe 'help' them back in gently, being careful not to damage the pad surface - you can push on the back of the opposite pad to do this, if that makes sense... It's on Hope's site anyway.

You didn't say if this was a new problem? If they've been fine in the past you probably just need to try centering them again. If they're new maybe think about having the mounts faced.

stumpyjon

Personally I now live with a bit of rubbing on my Juicy 7s unless they are slowing the wheel. Never seem to get the calipers centred for more than one ride. My XTs on the other bike are always fine though :? .

Anonymous

yeah I get the same on my Juicy 3s on the front, tried re-aligning a few times, last for a ride then back to that lovely noise, I just live with it now as it's nothing major and doesn't slow the wheel.

I've tried, reshaping the rotor (by hand) and taking rotor off, putting it back on, serviced pads etc...seems to be one of those things

Salsa

I find the squeezing lever on & tightening the bolts trick rarely works, it's far better to do it by eye.
Loosen both bolts a little so it takes a bit of force to move the caliper, line up one end & spin the wheel making sure it doesn't rub then move the other end until that's centred as well. Do the bolts up slowly whilst holding the caliper & sighting the gap to make sure the torque of you doing it up doesn't move it.
Pump the lever a few times to see if it's still centred, if not re-do.

elPedro666

...and re-do
...and re-do
...and re-do

Salsa

Well my Juicy 5's don't rub one bit

GTi-R23

Salsa wrote:

I find the squeezing lever on & tightening the bolts trick rarely works, it's far better to do it by eye.
Loosen both bolts a little so it takes a bit of force to move the caliper, line up one end & spin the wheel making sure it doesn't rub then move the other end until that's centred as well. Do the bolts up slowly whilst holding the caliper & sighting the gap to make sure the torque of you doing it up doesn't move it.
Pump the lever a few times to see if it's still centred, if not re-do.

+1, that's what I do, squeezing the lever and tightening the bolts never works for me. I can get it totally silent doing it by eye.

Also the more you take your wheels on and off will throw out caliper alignment I find.

darren555

elPedro666 wrote:

If the rotor's definately straight then have a look at the HopeTechnology.com for set up videos (same principal). Also check that the pads/pistons are retracting properly into the calliper, maybe 'help' them back in gently, being careful not to damage the pad surface - you can push on the back of the opposite pad to do this, if that makes sense... It's on Hope's site anyway.

Cheers for the link to the videos. Centrallising the pistons sorted it and it was only a 30 second job

LDNTrailRider

+1 more! squeezing the lever never works for me either. Do it as Salsa says. My juicy 5's do make a nice chime every time the wheel spins but it doesn't slow me down much!