Shimano XT FH-M8010/M8000 Rear Hubs.

– Double contact bearing seals
– Super polished bearing races for low friction rolling
– Shimano Quick-engagement freehub
– Not compatible with Shimano 11-Speed Road cassettes
– Cone bearings races ground by a Cubic Boron Nitride tool for smooth-rolling durability
– Center Lock disc brakes provide reliable braking power (lockring sold separately)