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 bottom bracket features Gutter Seal Technology™ that drastically improves sealing against the elements, along with sealed cartridge bearings for durability. The single oversized spindle design eliminates the need for multiple standards, and the system is significantly lighter than the GXP system.
