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.
DUB™ Technology
The relationship between bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler and better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.
DUB™ Technology
The relationship between bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler and better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.
SRAM was founded on a single product in 1987 and introduced the Grip Shift (or twist shift) shifter to the road bike market in 1988. In 1991 that technology was adapted for mountain bikes, and SRAM quickly grew. Their commitment to industry leading innovation and passion for delivering an improved riding experience has seen them rise to become one of the most recognizable brands in the bike components market.
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