Formula RX Hydraulic Disc brake help.

[MountainPro]

On my 2010 Rocky Mountain Element 50 mtb i have a set of Formula RX brakes. Recently after a marathon ride, the brake pads are no longer centered around the disc on front and rear. One pad is in constant contact with the rotor and the other is a mm or 2 clear and makes a noise when riding, a light squeeking noise. I am not great at adjusting them so does anyone know how i can re-centre the pads? They are held into place by a spring arangement and a bolt by the looks of things. Can send a pic if needed to make it clearer. There is no sign of excessive wear on the pads and rotors are clean and true. The brakes still perform well.

cheers
Harry...

 

[alfeng]

The fastest way to deal with the situation is to remount the brake calipers with different spacers and thereby center the pads ...

 

[alfeng]

BTW. I believe that #10 washers (?) which are available from any hardware store or lumber yard should work ...

• they are about 1mm thick

• they are the SAME SIZE as the washers which used to be used when lacing tubular rims which did not have eyelets
• they are typically sold in packets of 100 ... cost should be about £1, or less, for the packet

In case you want to fabricate thinner shims to fine tune the centering, someone once measured the aluminum which soda-and-beer cans are made with as being 0.2mm thick.