BB30 frames created a problem when SRAM moved to DUB spindles: the cranks wouldn't fit the oversized shell without an adapter. The DUB BB30 Bottom Bracket solves that interface mismatch, pressing into BB30 shells and providing the correct bearing inner diameter for DUB's 28.99mm spindle. If you've got a BB30 frame and want to run a DUB crankset, this is the part that makes it happen.

The bottom bracket presses directly into 68mm or 73mm BB30 shells using the included spacer kit to set the correct width. Installation follows standard press-fit procedure—the cups seat against the shell faces with bearings already installed. Steel bearings handle the load, and the aluminum cups keep weight reasonable for an adapter-style solution. The seal design uses contact seals to keep contamination out without adding excessive drag.

One thing to understand: this is specifically for BB30 shells, not PF30 or BB30A. Those standards use different shell dimensions and require different adapters. BB30 shells measure 42mm inner diameter with a 68mm or 73mm width—if your frame specs list those numbers, you're in the right place. The 73mm shell width typically shows up on mountain frames, while 68mm is standard for road applications.... Read More