Shimano XT RT81SA Centerlock Disc Brake Rotor
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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