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1. "My brakes squeal. Is there anything I can do to restore my dignity?"




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This article is from the Ducatis Motorcycles FAQ, by Duke Robillard duke@io.com with numerous contributions by others.

1. "My brakes squeal. Is there anything I can do to restore my dignity?"

Squeal can be caused by the vibrating of some mass, in this case, hard or
soft spots or hot/cold spots in the disk material, warped disks, or glazed
pads. There can be other causes too numerous to mention. Two possible
solutions to change the vibration frequency:

A) Damp the vibrating brake pad with a copper shim or some type of goo.
This'll change the frequency enough that it will pass out of the annoying
range (for you, maybe not for dogs and deer). The copper shim between the
piston and pad back decouples the the high frequency vibration that is
being transmitted as "squeal," the copper acting as a bearing surface.

B) Lubricate the BACK side of the pads; in theory this just lets them move
more freely and go past the annoying range. Some folks have tried sanding
the pads on a flat surface using 80-40 grit sandpaper to break the
occasional glaze, chamfering the leading edge of the pad by about 15
degrees or so.




 

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