SRAM DUB BB30 Bottom Bracket – BB30 83mm Cannondale Ai

The SRAM DUB bottom bracket series is engineered to connect crankarms and protect smooth, long-lasting power delivery to the drivetrain. SRAM designed the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. The DUB system features Gutter Seal Technology™ that drastically improves sealing against the elements, along with sealed cartridge bearings for durability. This design is significantly lighter than the GXP system while maintaining the reliability needed for demanding riding.