Dual or single piston???

[Jkdillard]

Hello all! I have a 1980 and 81 gl1100 parts bikes for my 82 gl1100. The calipers on my 82 are leaking. The 80 has single piston calipers and the 81 and 82 have dual piston caliper. Is one better than the other? Which ever option I go with the master cylinder and the calipers will be rebuilt.

[Wilcoy02]

Go with the 2 pistons. You will not have to change the rotors.

[Skeldog]

a trick I figured out to get the pistons unstuck on my front calipers was to diss-connect the rear caliper and hook the front up to the hose- takes a little bit and is messy but with a little effort you can pump them out-when one gets ahead of the other just use a C-clamp to stop that piston and let the other one catch up. mine were really stuck but with this method I was able to get them all out without damage and without help

[WingAdmin]

a trick I figured out to get the pistons unstuck on my front calipers was to diss-connect the rear caliper and hook the front up to the hose- takes a little bit and is messy but with a little effort you can pump them out-when one gets ahead of the other just use a C-clamp to stop that piston and let the other one catch up. mine were really stuck but with this method I was able to get them all out without damage and without help

Just stick one of the old brake pads in there after removing the caliper:



Then pump the brakes. The pistons will be forced out, when one piston contacts the old brake pad, the other one will be forced out until it too contacts the pad. At that point you can remove the pad and wiggle the pistons free with your fingers.

[Wilcoy02]

The author asked about a leaky brake. Also asked about 1 vs 2 pistons.
Not how to get a stuck piston out.