The new SRAM DUB bottom bracket series offers a simple way to connect the crank arms and ensure smooth, long-lasting power transfer to the drivetrain. To enable this unique focus, SRAM has designed the DUB axle to be the only true connecting component. An oversized axle is compatible with any bottom bracket standard and provides better protection against the elements for long-lasting performance. Stronger, smoother, and simpler.

The combination of crankshaft and bottom bracket is the heart of DUB technology, where stiffness meets durability. SRAM's engineers have made everything even simpler and better. The systematic approach through the integration of chainring, crank, axle, and bottom bracket means improved drivetrain performance.

• Details:

• An oversized axle for compatibility with all bottom bracket standards
• Easier installation
• ISO 4210 compliant
• Integrated adjustment mechanism
• Increased bearing lifespan
• PressFit cups for reduced weight

• Design: Hollow axle
• Frame compatibility: PF30
• Intended use: Road bike bottom bracket
• Design: Cartridge bearing axle
• Axle interface: DUB (28.8 mm).