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SRAM DUB bottom bracket series: Connect crankarms, apply power smoothly and protect drivetrain. Oversized spindle fits every BB spec for better compatibility, protection, performance. Stronger, smoother, simpler. Now, back to the ride.
The 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 specification. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.