Frustrated! I have a rear brake that, every now and then (im sure by MY fault, but...) drags, overheats, nukes rotor/shoes. Dont know why. Aftermarket rearsets, hose (Galfer), replaced pads, master cylinder, pads, caliper, .... Still, every now and then, nukes rear rotor! Locks almost, have to loosen bleeder to release pressure. Last time- only smoke (evapbrake fluid) out bleeder!. WTF!?!?