The SRAM DUB Threaded BSA Bottom Bracket is a comprehensive bottom bracket system designed to simplify the relationship between chainring, crank, spindle, and bottom bracket. It has found the sweet spot between 30mm and 24mm spindle diameters, offering some of the best qualities ...The SRAM DUB Threaded BSA Bottom Bracket is a comprehensive bottom bracket system designed to simplify the relationship between chainring, crank, spindle, and bottom bracket. It has found the sweet spot between 30mm and 24mm spindle diameters, offering some of the best qualities in one package.
The system is made from aluminum and features an English threaded interface. It weighs 76g and is compatible with all frame shell standards, including 68/73mm sizes.