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Old 01-08-05, 11:09 PM   #1
hebrew_rider
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shimano deore disk brake rubbing

my new shimano front disk brake is rubbing and i've tried everything. i've tried setting the front wheel straighter, repositioning the disk itself, EVERYTHING! any ideas?
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Old 01-08-05, 11:41 PM   #2
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Loosen the bolts holding the caliper just a little. Spin the wheel, where it rubs, move the caliper. Retighten the bolts.

O.k., this seems like a no-brainer, but no matter how well I adjust my calipers, I always spin the wheel a couple of times to make sure it runs drag free. I "fine tune" before I torque the bolts.
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Old 01-09-05, 12:59 AM   #3
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You could also try releasing the quick release bolt holding the wheel on and then retighten the bolt while squeezing the brake.

if that doesnt work and assuming you have the mechanical dics then just loosen the caliper mounting bolts- put a thick piece of paper between the pad furthest from the wheel and the disk. Then tighten the pad adjustment screw. Then retighten the caliper mounting bolts. Then remove the paper and loosen off the pad ajustment screw until the brake does not drag.

The following service instructions may help:

http://www.shimano-europe.com/cyclin...-BRM515-En.pdf

If you have the hydraulic brakes then look at the Shimano site for the corresponding adjustment instructions
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Old 01-09-05, 01:07 AM   #4
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Sometimes on the Deore Hydros(like I have) the pad spring can weaken. When you take the pads out it looks a lot like a fork, spread it to a minor degree(like milimeters) then put it back together. The extra spring force will make the pads spread apart a little farther. Do this with caution, because at the same time, doing it too much can make the pads spring out too far and not engage within the stroke of the lever.
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Old 01-09-05, 07:33 PM   #5
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if its mechanical... buy an avid
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Old 01-10-05, 05:27 PM   #6
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Make sure the disc is not bent
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