Light weight meets rigidity with the Shimano RT76 Disc Brake Rotor. Thanks to 160, 180, and 203mm size options you can choose which size will best fit your riding style and terrain. The stainless steel rotor stops corrosion and adds life to your brakes. Rigid design keeps these rotors straight and saves costly trips to the mechanic. The aluminum rotor keeps them light and nimble, and the six-bolt pattern holds the rotor solid to any standard hub.