The Shimano SM-RT10 disc brake rotors provide exceptional stopping power in all riding conditions. Shimanos Center Lock mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design.For use with resin pads onlyOffers easy handling and operation for entry level ridersCenter Lock lockring design offers fast and easy installationIncludes standard type rotor lockringRequires external-type rotor lockring when installing onto 15/20mm axle hubItem SpecificationsRotor Size (mm)180Hub/Disc CompatibilityCenter-Lock DiscPad CompatibilityResin Pads OnlyRotor TypeTwo Piece