SRAM DUB T47 Ceramic Bottom Bracket
SRAM DUB T47 Ceramic Bottom Bracket, The T47 bottom bracket combines the best characteristics of the PressFit 30 bottom bracket and the traditional threaded bottom bracket to give us a squeek-free ride. The SRAM DUB T47 Ceramic Bottom Bracket takes this one step further and adds ceramic bearings for silky-smooth highly efficient pedaling.