Shimano Deore Disc Brakes..

[Will Arnold]

do i have to re-bleed the system to switch the hoses over from front to rear? or can i just undo the shrouds and swap them, like on magura rim brakes?

thanks!!

Will

[RobinJI]

You can normaly get away with just undoing them and switching them over.

[darrenhopper]

If you're doing a quick swap the safest way to go about it is to remove the wheel from the bike, pump the lever really slowly to shove the pistons out of the caliper. This will leave you a good reserve of fluid in the caliper/lines.

Then undo the hose union at the lever very slowly & be sure to lose as little fluid as possible. Swap over & tighten up the hoses. It's a bitch to do on your own because there are 4 bits to worry about (Two levers & two hoses). Always better if you can source a mate that will help without f**king everything up.

Anyway when it's all re-assembled, grab a flat bladed screw-driver & lever the pistons back into the body of the caliper. This will push the extra fluid back up the lines into the reservoir at the lever. The point of doing all that is to eliminate the possibility of a bubble where the hose was removed... That bubble will be pushed into the reservoir along with the excess fluid where it's harmless.

Of course all that depends on not losing alot of fluid from the hose or lever body during the swap over. Best of luck mate & hey, let us know if you manage it alright.

Later,

D.