98 zx6r rear brake problem
I just changed pads today and noticed a O-ring twisted op inside.
After pushing the piston out to set it I noticed it was stretched and needs to be replaced. For now I just removed it because it is not leaking or anything but now after bleeding the brakes and taking a test ride I noticed it feels like it is dragging and when i press the brake petal I have nothing in the back. The caliper piston did look pretty bad but what I would like to know is should I try rebuilding the master and caliper or just replace it?
PS even with the brake line off and bleeder valve out I had a rough time compressing the piston. Could it be that it is stuck? What are your thoughts on this?
Noob owner of 98 zx6r project bike.