Chris King ISO B 12x148mm rear hubs are designed as precision mountain tools. Chris King uses 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 fend off mud, water, and contaminants as you power through rough trails, ISO B hubs have heavy-duty bearing seals, and a threaded driveshell seal ring.
Every hub bearing features heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of Chris King bearings is what sets them apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all their hubs and bearings are fully serviceable for years upon years of demanding use.
The patented Chris King RingDrive with 72-points of simultaneous-engagement will get your power to the ground fast, provide unmatched engagement, and give you that legendary Chris King angry-bee sound.