SRAM Bottom Bracket - Bb Dub Pressfit (55mm Chainline) 89/92mm

DUB technology delivers a unified bottom bracket system engineered for consistent fitment, improved sealing, and long-term durability across road, mountain and fatbike applications. Built to work seamlessly with DUB spindle cranks, it simplifies compatibility while optimizing bearing performance and drivetrain efficiency. A single oversized spindle design allows broad compatibility with multiple shell standards, while sealed cartridge bearings and Gutter Seal Technology dramatically reduce contamination and maintenance. The result is a lighter, more reliable assembly with smoother rotation and better longevity than legacy systems. Available in press-fit and threaded configurations as well as BB30/PF30-style options, the system includes vehicle-specific left cups for select frames and supports different chainline and axle requirements. That flexibility makes it easy to match the correct interface to your frame and crank choice without compromising performance. For riders seeking lower friction and extended bearing life, ceramic-bearing variants are offered alongside robust sealed units for demanding off-road conditions. All versions prioritize consistent power transfer, reduced drag, and reliable operation in varied environments. Whether you’re building a lightweight road setup, a durable trail rig, or a purpose-built fatbike, this DUB bottom bracket family provides a streamlined, high-performance solution. Select the configuration that matches your shell type and crank compatibility for a durable, low-maintenance foundation under your drivetrain.