Sram Dub Bottom Bracket

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SRAM DUB is the single replacement for 30mm and 24mm bottom bracket spindles options. They fit all frame shell standards and DUB does NOT introduce any new frame shell standards. D UB The relationship between bottom bracket spindle and bearing is the core of DUB technology. It's where stiffness meets durability. We took it a step beyond conventional thinking and made everything simpler-better integrating the relationship between chainring, crank, spindle, and bottom bracket. It's this approach to developing a complete system that equals better drivetrain performance. Show more