The new SRAM DUB bottom bracket series has a simple job, to connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, SRAM have 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.THINGS TO REMEMBER One oversized spindle to work across every bottom bracket standard Gutter Seal Technology drastically improves sealing against the elements Significantly lighter than GXP systemFEATURES AND BENEFITS Gutter Seal Technology Sealed cartridge bearings ISO 4210 compliant. SPECIFICATIONSBB-frame interface English/BSA 68/73mmCrank-BB interface DUBBearing type StandardSpindle diameter DUBCup material AluminiumSupplied with 2, 3 4.5mm Spacers