Aggression and beauty collide in RSD's exclusive Contrast Cut finish We start with a black-anodized wheel, load it back on the CNC-machine and re-cut the black surface to reveal the aluminum underneath The newly cut surface is left untouched and delivers a raw and aggressive style Matching Roland Sands Design Forged Aluminum Pulleys and Roland Sands Design Two-Piece Brake Rotors are available Fully sealed, maintenance free-deep groove wheel bearings CNC-machined from billet forging Rolled rim lip