imported post
It's pretty common for the brakes on these bikes to be full of junk from previous owners not changing the brake fluid every year or two. The pistons get stuck.
Mine had the same problem. I took the calipers apart, cleaned them and put it all back together. New seals and rubber parts are recommended, but I've re-used old seals that were in good shape. I'm not recommending that you use the old seals, but telling you what I've done in the past with good results.
The hardest part will be removing the stuck pistons. One method that sometimes works is to leave the banjo fitting connected to the caliper after removing it from the rotor and pumping the brakes until the pistons are loose enough to remove either by hand orvise gripsthat are loosly clamped with a piece of rubber protecting the piston. You'll have to do both brakes at the same time because once one piston is out there will be no more pressure to push the rest out.
It's pretty common for the brakes on these bikes to be full of junk from previous owners not changing the brake fluid every year or two. The pistons get stuck.
Mine had the same problem. I took the calipers apart, cleaned them and put it all back together. New seals and rubber parts are recommended, but I've re-used old seals that were in good shape. I'm not recommending that you use the old seals, but telling you what I've done in the past with good results.
The hardest part will be removing the stuck pistons. One method that sometimes works is to leave the banjo fitting connected to the caliper after removing it from the rotor and pumping the brakes until the pistons are loose enough to remove either by hand orvise gripsthat are loosly clamped with a piece of rubber protecting the piston. You'll have to do both brakes at the same time because once one piston is out there will be no more pressure to push the rest out.
