Bottom Brackets

The SRAM DUB bottom bracket series has a simple job—to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard

Get more distance out of every pedal stroke with SRAM's phenomenal PF30/BBright 79/83mm Bottom Bracket Assembly. It features Gutter Seal technology to keep dirt out and everything spinning smoothly. Plus, it presses directly into your frame's 79 or 83mm PF30/BBright bottom bracket shell for reduced weight and increased longevity.