The new SRAM DUB bottom bracket series has a very simple task: to connect the crank arms while ensuring a durable power transfer in the drivetrain. For this specific requirement, we designed the DUB crankshaft: a single oversized shaft that works with all bottom bracket standards. For better crank compatibility, improved protection from the elements, and long-lasting performance - stable, smooth, and simple. And now, back on the bike!

Intended use: Road bike
Details:

• Oversized shaft that works with all bottom bracket standards
• Significantly better sealing through Gutter Seal Technology
• Much lighter than the GXP system
• Industrially sealed

Design: Hollow axle
Frame compatibility: BSA bottom bracket
Design: Screwed bearing cups
Axle: DUB axle interface (28.8 mm).