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  1. #1
    mtbr member
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    Apr 2012
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    270

    Rear brake: grinding noise, but not rubbing

    Went out on a ride today, and on a particularly steep incline lost control of the front wheel, popped it and fell backwards. Managed to bail from the bike in time and land on two feet, but the bike fell on the side a little hard.

    The rear hydraulic disc brake started making a squeal-grind noise after that when I applied the brakes. The wheel spins freely when brake is released - there's no rubbing on the rotor, and the stopping power is still there, just the huge amount of noise.

    I didn't have time to diagnose it on the trail, so rode forward using just the front brake unless absolutely necessary to engage both.

    What could it be?
    Thanks.

  2. #2
    Just a flesh wound
    Reputation: Prophet Julio's Avatar
    Join Date
    May 2008
    Posts
    1,318
    Dirt, sand, a small rock, or a very gnarly toe nail that got wedged in there. Probably nothing to worry about. Give it a rinse and see if it clears up after a few tries of the brake, while moving.

    Next time, you can give the brake a few squeezes while pedaling and clear out the debris.
    My name is Chris and I ride a Prophet 650b with a Lefty.

  3. #3
    mtbr member
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    Apr 2012
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    270
    Thank you, will take a closer look!

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