Son uses a high speed rotatry tool to slightly redistribute the metal to fill in curb rashes and then polishing out the scratches. You'll most likely want to get the tire re-balanced after this. Here is the '00 front wheel after the polishing step (now you can see how much area had scratches):
02 M3 SMG Coupe - prepared class BMW Club racer
08 135i 6sp - stock class BMW Club racer
Last edited by scottn2retro; 11-01-2002 at 02:16 PM.