The new SRAM DUB bottom bracket series has a simple job-connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we've engineered the DUB spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket standard. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.
One oversized spindle to work across every bottom bracket standard
Greater bearing durability
BB-frame interface: BB30
Crank-BB interface: DUB
Bearing type: Standard
Spindle diameter: DUB
Cup material: Aluminum
DUB - The relationship between bottom bracket spindle and bearing is the core of DUB technology. Its where stiffness meets durability. We took it a step beyond conventional thinking and made everything simplerbetter integrating the relationship between chainring, crank, spindle and bottom bracket. Its this approach to developing a complete system that equals better drivetrain performance.
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