• same for me as user91170, the piston was sticking in the bore such that it would not return to its rest position when the lever was release. In turn meaning not enough fluid was forced down to the calliper even with the level travelling through its full range of motion. Fixed it temporarily but will move back to shimano as soon as a cheap groupset comes up

  • same for me as user91170, the piston was sticking in the bore such that it would not return to its rest position when the lever was release.

    I have a similar issue with the SRAM Guide brakes on an MTB. Until things warm up, the front leaver just flaps around the dead travel. Still works fine though.

  • Yup, I am now in this boat (with Rival levers). Any advice on what to do if the piston doesn't want to pop back out of the cylinder? Force fluid in via the bleed port?

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