I'm in the process of replacing a sticking rear caliper but having removed the old one, I notice it is stamped with 42/20 and the new one with 44/22. I'm not sure what these numbers mean, but are the 2 calipers compatible or not?
Gravity bleeding will work every time no need to pump the pedal slacken nipple wait for fluid to dribble bubble free nip up nipple job done there you go a tip from someone on the tools