There have been a few post on pulsating brakes, one cause is a warped disk. It is not a very common thing with floating disks brakes because they float on a band of rings and the rotor itself is heat tempered. However a dragging brake pad can heat up a disk and warp it. I have been getting alot of pulsation in my brakes as I begin to apply them, I suspected the rear brake, it is difficult to tell, so I put the bike on the rear stand and turned it to see if it was rubbing, I could not feel any ru