The Shimano SM-RT64 SLX Deore Rotor is simple to install, the Shimano Deore RT64 CentreLock Disc Brake Rotor helps your brakes to perform at their best. Made from stainless steel, it works consistently in tough conditions and during sustained periods of braking.Shimano SM-RT64 SLX Deore Rotor Highlights-Shimano SM-RT64 rotors offer secure and easy set-up with the proven Centre-Lock mounting systemPrecision cut stainless steel braking surface improves pad clearing in muddy conditions while aiding cooling underhigh loadRotor contact surface has been developed for excellent pad clearing and cooling which increases pad performance and lifeAlloy spider supports rotor surface, increasing rigidity and reducing weightComes complete with steel lockringAverage weight for 160 mm rotor with lockring is 153 grams