My rear wheel does not roll freely. (2001 WR426F) When on the stand I have to use a good amount force to roll the rear tire. It appears to be binding or dragging on the rear rotor. I put on new rotor and new pads but it's still the same. The new rear rotor is starting to show alot of wear. I imagine it is from the brake pads continually dragging on the rotor. Any suggestions?