Shimano Deore RT64 External Lockring wth Magnet Center Lock Disc Rotor

Features

• 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