>>1909508I had awful luck with my hydro disc brakes until I changed the rotors that were warping because they were incompatibile with my shimano brakes and the rubber rings in that calipers because they were old and deformed and weren't returning the pistons.
After that the brakes haven't needed any attention. The pad clearance is massive and pads never squeel (before they would glaze up and squeel like crazy).
Surprisingly, none of these things are spoken about on the western internet.
I suggest you check the wear on your rotors: if your pads are rubbing the "spokes" of the rotor it will keep warping and dragging on the pads.
Also check how tight your quick release skewers are. They should be quite tight, otherwise you could encounter dragging pads.
I wish you best luck and great patience. Use your brain and do research. One must understand how a part works before attempting to set it up or fix it.
