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:

• 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
• For use with all SRAM DUB cranks in MTB 68mm and 73mm PF30 shells

SPECS:

• BB Shell Type: BB30
• BB Shell Width: 73mm
• Crank Spindle Diameter: 28.99mm
• Interface: DUB
• Primary Color: Black
• Cup Diameter: 42mm
• BB Bearing: Steel
• Model Description: DUB BB30 bottom bracket for 55mm chainline
• SRAM Model ID: BB-DUB-BB30-A1