Originally Posted by
Kornowski
So the pad may just be bending over onto the pad wave things?
Would getting new pads possibly solve this?
Probably not. The bottom of the pad is in contact with the rotor but the top of the pad is squeezing on empty space (the Polygons have about 1/4" from the peak of the wave to the valley). The pressure on the bottom allows the top of the pad to bend inward slightly and then, as the peak comes around, it's forced apart. Since you are likely to keep the same lever pressure through braking, the pad will flex in and out. A smoother, rounder rotor will help or, and I'm not sure how much adjustment you have, moving the rotor inward to avoid the peaks could help.