This is the Shimano XT RT86 Icetech Disc Brake Rotor for 6-bolt compatible wheels. The 3-layer structure with aluminum core and two stainless steel outer layers reduces rotor surface temperature by approximately 100 degrees Celsius compared to all-steel rotors.
6-bolt Ice-Tech Rotor Aluminum core construction Lowers operating temperature Resists power fade Increases pad life ICE TECHNOLOGY Rotor: Cooling technology for consistent performance.
Brake Type: Disc Brake Mount: 6-Bolt (44mm BCD) Pad Compatibility: All Compounds Bolts Included Weight: 135 (160 mm), 154 (180 mm), 187 (203 mm)
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.