0
I rebuilt my rear brake on my 2k5 GSXR 750 because I could not get a solid feel in the peddle, and it went all the way down. I know have a rock hard peddle, but the rear brake barely slows me down. I've bled the system using a hand type vacuum and have no air bubbles coming out of either bleeder on the caliper. I thought it may have been a piston stuck so I pulled the caliper apart again and they both moved freely in, put it back to gather and come to the same result. Does anyone have any ideas, or advice on where to go from here?