My rear rotor disk seems a bit noisy, a groaning type noise. My old pads had worn down to the metal backing plate and i wondered if that has affected the rotor and rapidly worn the rotor disk out prematurely. They are avids, if that matters.
Replaced rotor disk, and the groanings stopped. The pads have only done 2 rides, so i'll keep them as they are. I guess that groaning noise is the indication that the rotor needs replacing, its hard to tell just by look or touch, without a micrometer. Thanks