SRAM DUB Threaded BSA Bottom Bracket Smith Optics TOTAL VENTS: 18 HELMET VENTS

TOTAL VENTS: 18 HELMET VENTS

Load distribution system to prevent bearing blowout

Rail Material Cr-Mo

The mini U-lock is made from 12mm hardened steel for defense against cutting and twist attacks

SRAM DUB Threaded BSA Bottom Bracket Smith Optics TOTAL VENTS: 18 HELMET VENTSIts 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