Hope MTB Floating Centre-Lock Disc Brake Rotor - 220mm, Center-Lock, OrangeThe Hope MTB Floating Centre Lock disc brake rotor is a high performance option designed for demanding applications. Constructed in two parts, the aluminum center provides weight savings, while the specially formulated laser cut 410 stainless steel braking surface can handle high temperatures without warping. High performance disc allows the stainless steel outer to expand separately from the center to handle high temperatures without warping True