No lock rings included.
Shimano RT-MT800 - Ultegra - Ice Tech FREEZA Disc Brake Rotor - Centre Lock
Shimano RT-CL800 Ice Tech FREEZA Brake Rotor with Internal Lockring - 140/160mm
Shimano XTR SAINT RT-MT905 Ice Tech Freeza 6 BOLT Bike Disc Rotor. 180mm
Shimano Ultegra Ultegra/XT RT-CL800 Ice Tech FREEZA Centre Lock Disc Brake Rotor
Shimano RT-MT800 Ice Tech Freeza Centre Lock Disc Rotor
Shimano RT-CL900 Ice Tech FREEZA Brake Rotor with Internal Lockring - 140/160mm
