SRAM DUB BB30 Ceramic Bottom Bracket
SRAM DUB BB30 Ceramic Bottom Bracket, The SRAM DUB BB30 Ceramic Bottom Bracket uses an oversized spindle to better connect our crankarms while working across every bottom bracket specification. It delivers the smooth long-lasting power application to our drivetrain that we like while the ceramic-sealed cartridge bearings keep it rolling smoothly and quietly.