The new XTR M900 Ice Tech Freeze Rotor design has been completely redesigned & enhanced to significantly increase braking stability, heat dissipation & precision in even the most demanding of riding conditions. The new Ice Tech Freeza construction sheds heat faster & 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.