Shimano Deore XT RT81 Centerlock IceTech Disc Brake Rotor

Shimano XT RT81 Centerlock Disc Rotors

- 3-layer structure with aluminum core and two stainless steel outer layers reduces rotor surface temperature approximately 100 degrees Celsius compared to all-steel rotors
- Aluminum spider
- Includes standard type rotor lockring
- Requires external-type rotor lockring when installing onto 15/20mm axle hub