SRAM DUB Threaded BSA Bottom Bracket Smith Optics Running the length of the

Running the length of the pad in the rear and extending across the lower front a breathable 4-way stretch mesh maintains airflow for all-day comfort

350 or 440 hubs

Ergonomic design conforms to riders hand without feeling bulky

the heritage of performance has a new milestone

SRAM DUB Threaded BSA Bottom Bracket Smith Optics Running the length of theIts the one bottom bracket system to rule them all sort to speak. The SRAM DUB bottom bracket system was created 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 their best qualities in one package. FEATURES Material: Aluminum BB Interface: English Threaded Weight: 76g (BSA) Compatibility: DUB bottom brackets fit all frame shell