It could be that something abrasive may have landed between the pads and the rotor. But unless there is some adverse affect on braking performance, or abnormal noise, not likely to be a serious concern. If the grooves are deep, as in scored into the rotor, then no, not normal.

I know I went through two sets of front and rear pads in the first 40K miles, and just replaced my rear pads again with the new tire at 84K, Saturday. As I have learned more about riding, I brake less and less? Anyway, as long as I don't feel a high "lip" on the outer edge of the rotor surface, I know they have not worn too much.

I might add, too, that my front rotors did warp early on, and I experienced that "pulsating" sensation when grabbing the front brake for a while, but it took care of itself without any action on my part (other than just riding the p**s out of her).


Keith
Houston
Ridin'Texas
'04 Speedmaster
AI removed, Pingle, UNI Filter, 1 shim, straight-through slash-cut TORs, Stage 1 DynaJet, 140 mains, 3 turns, 16/42 final drive, 115K
2020 T120 Black