Lyndall Brakes B-52 11.8 X 7mm Rear Brake Rotor For Harley Lyndall Brakes high-carbon steel B-52 Rear Brake Rotors are made in the USA with precision CNC machining, designed to exceed standard performance. Engineered to endure the toughest powersports conditions, they provide dependable stopping power. Lyndall delivers exceptional quality and performance assurance to riders. Features: Direct fit Full floating rotor Braking surface is a replaceable friction ring held to the aluminum carrier with a large snap ring 11.8 X 7mm Slotted rotor grooves improve performance under heavy braking by lowering brake fade from high-temperature brake pads outgassing, by allowing gases to escape through the slots, improving braking consistency Made in the USA