Sram: SINGULAR FOCUS. BETTER SOLUTION.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.THINGS TO REMEMBER• One oversized spindle to work across every bottom bracket standard. • Greater bearing durabilityFEATURES AND BENEFITS• Easy installation • Press Fit cups for lighter weight • Integrated adjuster • ISO 4210 compliant.SPECIFICATIONSBB-frame interface: PF30 (68-73mm)Crank-BB interface: DUBBearing type: StandardSpindle diameter: DUBCup material: Aluminium