The Chris King Nothreadset is perhaps the industry's single most iconic component. With its precision and its durability, Chris King established the standard for quality. And ever since Chris King unveiled their bottom bracket, Shimano riders have reveled in having the King name adorn their drivetrain. This SRAM compatible version allows the Chris King Mountain Bottom Bracket to be used on all SRAM GXP, Truvativ GXP, and Bontrager GXP cranksets with a stepped 24mm axle.
The aluminum cups of the Chris King Bottom Bracket house 24 stainless steel balls in each of the made-in-house cartridge bearings. They're user serviceable with the Chris King Grease Injection Tool (available separately). Simply squirt fresh grease into the bearings to purge the gunky, used grease and keep things spinning smoothly. This system has a fringe benefit for racers -- it gives you the option of running a very thin grease or even oil on race day in order to minimize bearing drag. And when you're not racing, it's a snap to inject thicker grease to maximize durability.
The Chris King SRAM Mountain Bottom Bracket is available in Black and Red. It's compatible with both 68mm and 73mm bottom bracket shells and comes with two 2.5mm aluminum spacers for use with 68mm shells.
Two final technical notes: (1) This version of the Chris King Bottom Bracket is specific to mountain bike cranksets. It is NOT compatible with road cranksets due to one critical issue -- the thickness of the external portion of the cups are different between road and mountain. We offer a very-similar-yet-different Chris King SRAM compatible bottom bracket for road bikes. (2) This bottom bracket, when installed in a 73mm shell and combined with a GXP crankset is NOT compatible with either E-type front derailleurs or bottom bracket-mounted chainguides. The cups can be installed and removed with a Shimano style bottom bracket tool.