Flo Motorsports 11 1/2 Floating Brake Rotor For Harley Going fast is only half of the equation. If you have a built motor, your brakes had better be up to the task. Flo Motorsports Floating Brake Rotors utilize a lightweight CNC machined aluminum carrier ring that reduces rotating weight for increased braking performance and improved handling. Features: CNC machined 7075-T6 inner carrier reduces weight Full floating design maintains performance and lever feel under heavy use Includes reducer spacer for 99' and down applications