SM-MT800 SS (140mm) XT Center Lock Rotor

Center lock interface uses a lockring to mount the disc rotor to the hub
Center lock rotors are interchangeable with all Shimano disc brakes as long as the hubs and rotor size match the caliper
Unless otherwise noted, Center lock rotors include lock ring and washer
Ice Tech brake rotors (RT-98; RT-81; RT-67) feature an aluminum core clad with stainless steel braking surfaces. The innovative design sheds weight, dissipates heat and dramatically improves overall performance
Freeza Technology (RT-99) features 3-layer structure with aluminum core and stainless steel outer layers and additional aluminum cooling fins reduce rotor surface temperature approximately 150 degrees Celsius compared to all-steel rotors