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. FEATURES SPECS FEATURES: One oversized spindle to work across every bottom bracket specification. Easy installation PressFit cups for lighter weight Sealed cartridge bearings available in both stainless and ceramic versions DUB™ technology features a better engineered bottom bracket and a new spindle design for a more uniform approach to bottom bracket fitment, better sealing against contamination, and a new measure of durability SPECS: BB Shell Type: BB121 Cup Diameter: 41mm BB Bearing: Steel BB Shell Width: 121mm Crank Spindle Diameter: 28.99mm Interface: DUB Primary Color: Black For use with all SRAM DUB fatbike cranks in PF121 BB shells SRAM Model ID: BB-DUB-PF-A1
