Originally Posted by
kingston
They are constantly either rubbing or squeaking or both. I've done the whole sand the pads and rotors, replace the pads and rotors. I've tried everything. Nothing I can do despite endless fiddling can stop them from rubbing and/or squeaking for more than a few hundred miles. I keep my bikes clean so rim vs. disk is the same effort in that regard.
Sounds like you need to true your rotors. New rotors are not necessarily true and the hub mount may also not be perfectly flat. If your rotors are straight you shouldn't need to do all that regularly. In fact sanding the pads and rotors constantly is making the problem worse because you need to re-bed them each time. Either that or something is crooked like the mounts or the hub has play