SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black ModelNumber=G0389 Features a steel air chamber

Features a steel air chamber

28mm OD 6069 aluminum rims with Vault hubs

} The exceptional profile and OneStar rubber compound make the Schwalbe X-One one of the fastest cross tires ever

} Maximum grip for competition use

perfect for all winter activities

SRAM DUB BB30 Bottom Bracket - BB30 73mm MTB Boost 55mm Chainline Black ModelNumber=G0389 Features a steel air chamberSRAM DUB BB30 Bottom Bracket BB30 73mm MTB Boost 55mm Chainline Black. 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. Designed for use with SRAM Boost cranksets with 55mm chainlines Gutter Seal Technology drastically improves