OK, rebuilt both calipers new seals and piston,(twice) bleed the brake till no bubbles. It has aftermarket master cylinder. I have done everything possible to get these brakes to work. even back bleed them . Still have spongy brakes. 2 pistons on each caliper. Need to pump the lever a bit to get a decent brakes.. I am at witts end.. HELP
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grepper
Old Bike Nerd
Either you still have air in there somewhere or maybe you have one or more bad brake lines.
One trick I use is to bungee the brake handle in, take the cap of the reservoir and it sit over night. Or with it like that, tap everything with a screw driver handle, getting those bubble moving.
One trick I use is to bungee the brake handle in, take the cap of the reservoir and it sit over night. Or with it like that, tap everything with a screw driver handle, getting those bubble moving.
