I'm running a set of 2012 Shimano XT BR-M785 disc brakes. There's a leak coming from under the top covers on both the master cylinders. I removed the covers and apparently over-torqued and ruined the rubber diaphragm. Is there a way to McGyver this, and if I wanted to replace the diaphragm, where to get? My LBS is having trouble getting the part.
Results 1 to 8 of 8