Vibrating disc brakes

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Colin Stanley
Posts: 315
Joined: 12 May 2007, 7:05pm
Location: Somewhere in Kent

Vibrating disc brakes

Postby Colin Stanley » 29 Sep 2009, 5:45pm

My off road bike has Hayes Nine hydraulic disc brakes. Bike doesn’t get a lot of use. However, recently when I apply the brakes there is a dreadful vibrating noise. Was tempted to roughen up the disc surface and those of the pads, but not too sure if this would bring silence . Any ideas please?

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Phatman
Posts: 51
Joined: 20 Jan 2007, 8:15am
Location: Oxfordshire

Re: Vibrating disc brakes

Postby Phatman » 29 Sep 2009, 11:49pm

I had a similar problem on the rear disc brake of my full suspension bike. It turned out that the swingarm was not quite up to the job of disc brakes, but I found a tip that worked and it has proved reliable over several years. The solution that worked for my problem involved fixing a stiff stainless steel bracket between the forward caliper bolt and the cantilever boss - in my case I used two rear carrier braces bolted together and twisted through 90 degrees.
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rootes
Posts: 605
Joined: 27 Jul 2008, 6:44pm
Location: Woking, Surrey

Re: Vibrating disc brakes

Postby rootes » 30 Sep 2009, 8:31am

Colin Stanley wrote:My off road bike has Hayes Nine hydraulic disc brakes. Bike doesn’t get a lot of use. However, recently when I apply the brakes there is a dreadful vibrating noise. Was tempted to roughen up the disc surface and those of the pads, but not too sure if this would bring silence . Any ideas please?



more likly to the be the pad backing vibrating againts the capiler body and pistons - same as in a car - cure for car is to coat those surafces with hightemp copperslip to stop the vibration.

Colin Stanley
Posts: 315
Joined: 12 May 2007, 7:05pm
Location: Somewhere in Kent

Re: Vibrating disc brakes

Postby Colin Stanley » 30 Sep 2009, 4:31pm

Thanks guys.
My bike is a hardtail so will go the high temp copperslip route.