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The matching bottom bracket of the new SRAM DUB crank generation for frames with BSA bottom bracket shell. The DUB bearings have an improved seal to ensure that the crank runs silky smooth for even longer. In addition, the DUB BSA bearings are significant
The SRAM DUB bottom bracket series has a simple task: it connects your crank arms and ensures smooth, long-lasting power transmission to your drivetrain. To enable this focus, we designed the DUB axis as a single, truly unified component. One oversized axle for all bottom brackets For better crank arm compatibility. For better protection from the elements. For a longer lasting performance. To be stronger, smoother and easier.
