The SRAM DUB bottom bracket series has a simple job: to connect the cranks and ensure smooth, long-lasting power delivery to the drivetrain. To enable that singular focus, we designed the DUB spindle to be the one true unifying component. An oversized spindle to work with every bottom bracket specification. For better crankset compatibility. For better protection from the elements. For longer-lasting performance. For stronger, smoother, simpler. Now, back to the race.

• An oversized spindle to work on all bottom bracket specifications
• Gutter Seal Technology™ seals against the elements
• Significantly lighter than the GXP® system
• Sealed cartridge bearings available in both stainless steel and ceramic versions