The SRAM Bottom Bracket DubPress 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.SRAM Bottom Bracket DubPress FeaturesOne oversized spindle to work across every bottom bracket standard.Significantly lighter than pfgxp systemEasier installation by allowing you to press the bearing cups into the frameEasy installationTwo fully sealed cartridge bearingsIso 4210 compliant. See declaration of conformity for details.SRAM Bottom Bracket DubPress SpecificationsBB-frame interface: press fit (mtb: 121mm), press fit (mtb: 89/92mm)Crank-bb interface: dubBearing type: standardSpindle diameter: dubSpindle length: n/aChain line: n/aSupport e-type fd: n/aCup material: steel