Performance Machine 320mm Spoke Mount Rotor For Harley These semi-floating rotors, expertly precision-ground and hardened to Rc36 specifications, are designed for relentless performance. They withstand intense heat, potential warping, and regular wear with remarkable durability. Its aggressive scallop cut and sweeping drill pattern not only reduce weight but ensure consistent, reliable braking performance under the most extreme conditions. Features: CNC precision machined 420 stainless steel Front dual disc ABS and Non-ABS Direct OEM replacement