• Shimano SM-RT10 rotors offer secure and easy set-up with the proven Centre-Lock mounting system. • Precision cut stainless steel braking surface improves pad clearing in muddy conditions while aiding cooling under high load. • Rotor contact surface has been developed for excellent pad clearing and cooling which increases pad performance and life. • Alloy spider supports rotor surface, increasing rigidity and reducing weight. • Comes complete with steel lockring. • For use with resin pad only. • Product Type: Disc Rotors.