Does anybody have any suggestions on how to remove a fully wedged piston in a hope mini caliper please… Have tried ‘pumping’ it out with a track pump but it will not shift. Cheers.

Do it before dismantling the brake – hold in the moving one and use the brake pressure to move it

Or much more pressure with a track pump – 100 psi type pressure

Thanks TandemJeremy. Unfortunately the brake is in pieces now. Didn’t expect it to be so wedged. Have ramped up pressure >100psi but no luck.

My LBS decided the only thing for mine was a new caliper half 🙁

I’d try reassembling it and using the brake pressure – or try soaking it in plus gas

Use a compressor … but make sure you have something to catch the piston, I’ve fired one out at crazy speeds before.

Re assemble, bleed, drop caliper into boiling water, count to three & squeeze the lever hard – obviously be careful not to get scalded!

Use a compressor … but make sure you have something to catch the piston, I’ve fired one out at crazy speeds before.

…..and please video it as well. 😉

Success! Reassembled and brake pressure applied. Disassembled and more air pressure and out it pops. Cheers for help all. TheElf