Brake rub, needs truing?
 

Hi,

I'v always had a little issue with the brake disc rubbing the pads on my rear wheel. The brake disc wobble a bit. I'm on my 3rd disc so obviously discs are not the problem. I've noticed as my brake rubs that by looking closely at the side of the wheel, it wobble at the same time that it rubs. Can an wheel that need to be true cause brake rub?

Thanks

Do your wheels have a quick release? If so, try releasing the wheel and then hold the brake lever tight before re-closing the quick release. This will probably eliminate this extremely minor misalignment.

This is what I do to ensure the wheel and brakes are properly centered and it works almost every time.

The only likely connection between a wheel's rim trueness and the rotor attached to the hub is if the hub bearings are somehow causing the hub shell (and then both the rotor and rim) to wobble collectively. With a classic loose ball hub having an extra (as in 10 balls when the spec was 9) this would happen, and the wobble would vary with every two wheel rotations.

But i really doubt this is what's going on. Have you had the wheel and rotor(s) trued? Andy.

My wheels have not been trued for years...

The rotor truing video seems to work great but having changed 3 rotors, it might work for now but the initial issue would still be there.

If the hub mountion point faces, for the rotor, are not square with the shell's bearing bore then any otherwise flat rotor will mount up with a wobble WRT the axle. Truing the rotor is a simple, but focus requiring, solution. Andy.