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post #1 of 3 (permalink) Old Sep 15th, 2010, 3:10 pm Thread Starter
Beemer01's Avatar
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Question Squealing brakes

I always ride with a helmet and ear plugs, but was recently riding on a tight city street and applied the brakes - and for the first time noticed how the brakes squealed when I applied the linked brakes.

A quick check of the front and rear pads show that they are all good.

Any tips on how to quiet this down?

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post #2 of 3 (permalink) Old Sep 15th, 2010, 4:07 pm
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It is more likely to happen with metal impregnated HH rated pads than softer Kevlar.

I would clean out any dust in the calipers first and make sure the pads can move in the caliper gap and aren't jammed up. When I've had brake squeal on other bikes that use HH pads I've usually cured it by putting a very thin smear of copper grease on the pad back.

If you've been riding the brakes very hard recently, you could have glazed the pad surfaces. Try roughing up the pad surface and clean with brake cleaner.

One cause of squeal can be a worn rotor with new pads. The outer edge of the pad can contact the less worn outer edge of the rotor. That can be fixed by just rounding off the outer edge of each pad with a file.

No single solution, but a few things to consider.

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post #3 of 3 (permalink) Old Sep 15th, 2010, 5:04 pm
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Originally Posted by Beemer01
Any tips on how to quiet this down?
It happened to me as well and I used brake squeal lube that is applied on the backside of the brakepad and dampening vibration. It seems to help.
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