Genuine Shimano SM-RT64 Disc Brake Rotor features a 160mm diameter with a centre lock mounting type. SHIMANO's SM-RT64 disc brake rotors deliver powerful and consistent braking performance in all riding conditions. SHIMANO's CENTER LOCK mounting system makes installing and removing disc brake rotors quick and easy, thanks to the spline mount and lock ring design. Made of steel Compatible with both Resin (Organic) & Metal (Sintered) Brake Pads Includes locking ring with external notches Purchased from a reputable Bike Shop December 2025 Only used for less than 300 miles As these are used rotors the recommendations are to clean and scour the surface because different pads will be used, once fitted you should follow a disc brake bedding in process.