- Shimano SM-RT64 rotors offer secure and easy set-up with the proven Center 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
- Rotor houses the magnet necessary for speed sensor function on Shimano STEPS equipped E-bikes allowing frame clearance for wider tyres
- Comes complete with lockring