Quote:
Originally Posted by cycleguy55
Any chance one of the brake pistons is binding in the caliper and not allowing the brake pad to be pushed back by rotor runout?
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Rotor runout should be zero, any runout is NOT what pulls the piston back.
The deformation of the square section caliper bore seal is what brings the piston back. The pads only move in thousands.
If you have runout pushing the pads back, you have brake shudder, and a long brake pedal, severity of either depends on the runout value.
Gary