Shimano's SM-RT26 6-bolt disc brake rotors deliver consistent stopping power in all riding conditions. Features-For use with resin pads only-Anti-loosening washers make for quick and secure installation-Includes rotor fixing boltsItem Specifications-Rotor Size (mm):180-Pad Compatibility:Resin Pads Only-Rotor Type:One Piece-Hub/Disc Compatibility:6-Bolt