Shimano SLX SM-RT66 6-bolt disc brake rotors deliver consistent stopping power in all riding conditions. The disc brake rotor's reliable anti-loosen plate construction makes for quick and secure installation. FEATURES: For use with resin or metal pads Includes rotor fixing bolts and non-turn washers Easy to install anti-loosen plates help secure disc brake rotor bolts in place ?SPECS: Rotor Type: One Piece Hub/Disc Compatibility: 6-Bolt Disc Pad Compatibility: All Pad Compounds