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Old 11-03-09, 01:00 AM   #1
podium3
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XTR Disk Brake Question

Hello all. I am running XTR 970 disk brakes on my bike. When I am off the bike and I hit the rear brake, the bike shakes a lot when I drag it next to me. I have swapped the pads from the front to the back and that did not do the trick. I have tried braking at high speeds to try to break the pads in and that did not work.

If anyone has any suggestions, I will be happy to try. I have not bled the line, but don't want to unless I have to. Can it be a hub problem or an xtr rotor problem?
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Old 11-03-09, 10:00 AM   #2
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Can't really help.

Is everything tight/secure? Loose pads maybe?

Last resort, go to LBS.
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Old 11-03-09, 10:15 AM   #3
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Quote:
Originally Posted by podium3 View Post
Hello all. I am running XTR 970 disk brakes on my bike. When I am off the bike and I hit the rear brake, the bike shakes a lot when I drag it next to me. I have swapped the pads from the front to the back and that did not do the trick. I have tried braking at high speeds to try to break the pads in and that did not work.

If anyone has any suggestions, I will be happy to try. I have not bled the line, but don't want to unless I have to. Can it be a hub problem or an xtr rotor problem?
What does it do when you are riding?
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Old 11-03-09, 08:26 PM   #4
RIC0
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Make sure all rotor bolts are tight and see if the wheel has any play at the hub.
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Old 11-04-09, 01:00 AM   #5
podium3
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I took the caliper off and reinstalled. It seems better now. When I ride, it seems to slide to one of the sides if I hit the rear brake hard.

The rotor has the cenerlock so that is on nice and tight.

When I have the bike on the repair stand, and I hold the rear brake down, I am able to move the wheel. It does not lock in place very well.

Thanks for the replies.
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Old 11-04-09, 06:30 PM   #6
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Sounds like you're just locking up the rear wheel- nothing to be worried about, you just don't need to hit the brakes so hard.
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