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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
- Hub/Disc Compatibility: Center-Lock Disc
- Rotor Size (mm): 180 mm
- Rotor Type: Two Piece
- Pad Compatibility: All Pad Compounds
- Weight: 141 g