DESCRIPTION
The SRAM DUB bottom bracket series has a simple job: connect the cranks and protect the smooth and long-lasting application of power to the drivetrain. To enable this singular focus, we designed the DUB chuck to be the only true unifying component. An oversized spindle to work on all bottom bracket specifications. For better compatibility with the crank. For better protection from the elements. For longer lasting performance. To be stronger, smoother, simpler. Now, back to the running.

An oversized spindle to work on all bottom bracket specifications.
Significantly lighter than the PFGXP system
Easier installation due to the ability to press the bearing cups into the frame
Sealed cartridge bearings available in both stainless steel and ceramic versions

Specifications