Building up a new set of wheels for your new or existing mountain bike? When quality, performance, and budget are driving your decision, choose Shimano XT M8000 series hubs. The M8000 Rear Hub is a standard 135mm wide, quick release style model that is both stiff, rolls smoothly, and delivers excellent engagement. The disc brake mount is the Centerlock spline design. With the release of the M8000 series 11 speed group, Shimano refined the freehub action for faster engagement and better power transfer. The freehub feels smoother than before, but more exact and responsive in drive action.

Labyrinth and Contact seals have seen a quality upgrade to better keep mud and water out of your hub assembly. Shimano employs angular contact bearings, which best the handle radial side loads that impact the axle, bearing, and shell interaction. Even the most expensive sealed cartridge bearings struggle with this force generated from regular use. The cup and cone system is adjustable, serviceable, and durable. Proper hub adjustment and service will ensure many years of high performance. The forged alloy hub shell carries the bearings and a stout alloy axle. A steel HG 9/10/11 freehub secures your cassette and won't get chewed up by individual cogs.

The Centerlock disc rotor mount is simple, clean, and easy to use. Even if you choose to run a 6-bolt rotor with a converter, installation and removal takes only a few seconds. The interface is solid, fully stabilizing the rotor and delivering stopping force immediately across the hub. XT hubs have always been among the best values on the market, and the M8000 series is no different. With the improvements, and great price, there is no reason to expect that to change. If you need to build up a quality rear disc wheel, choose CenterLock and XT for an affordable, strong performing rear wheel that is easy to maintain and service during it's long life.