I'm new to the hydro discs, so please bare with me.
problem is that my brakes are grabbing/rubbing the rotor sometimes.
sometimes they do and sometimes they don't. example i check them on the stand and the wheel rolls perfect and grab a handful of brake and they still roll then grab again and they rub the rotors after letting go. no real pattern its just random.
the rotor is straight and I have centered the rotor using the card on each side of the pad technique i read about here.
the martas are 2004 models and i bought them used and i couldn't be happier with the performance of the brakes. in fact i'velogged many miles with them now and never thought i would be so happy with discs.
anyways any advice/experience would be appreciated.