I've got some new Superstar pads and I can't retract the pistons enough to stop them rubbing on the rotor when I fit em (Avid Elixir 5 brakes). I'm pretty certain that the brakes wouldn't work satisfactorily if I let a bit of fluid out, as they pull almost to the bar with a worn set of pads fitted.
Are Superstar pads thicker than the average? Can anybody point me in the direction of a good deal on sintered pads that they know are a bit thinner than Superstar please? Ta.