Chris King Boost Rear Hub - 12 x 148mm 6-Bolt XD Black 32H. Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud water and contaminants as you power through rough trails Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring.

Canted flanges for stronger wheel builds

Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement

Easily serviceable with a T10 Torx and pick or pen knife

Specifically designed for "BOOST" 148mm x 12mm axle standard

Engineered manufactured and assembled in Portland Oregon USA with King Lifetime Warranty