The Shimano MT900 Ice-Tech FREEZA CL Disc Rotor AU features a completely redesigned profile to significantly increase braking stability, heat dissipation and precision. This disc rotor's Ice Tech Freeza construction sheds heat faster and more efficiently than ever before, ensuring that your brakes feel the same coming into the first corner as they do when exiting the final rock garden at the bottom of the mountain. This is the perfect choice of upgrade for pushing your off-road riding performance to the max.