Shimano XT RT76 6-Bolt Disc Brake Rotor - Ideal when paired with Shimano XT Calipers - Large forged alloy spider supports rotor surface, increasing rigidity and reducing weight - Large braking surface means faster and sharper braking as well as larger ven

Standard 6 bolt attachment.New Ashima Ai Rotors 185mm Compatible with Avid brake systems, you can now upgrade your existing rotors to the superbly light and durable Air Rotor.