SRAM's DUB bottom bracket system delivers a unified solution for DUB spindle cranks, engineered to bring smooth, reliable performance across a wide range of frame interfaces for both road and mountain use. An oversized spindle design allows compatibility with many bottom bracket standards while simplifying installation and service. Advanced sealing, including Gutter Seal Technology, protects the bearings from the elements for longer life and consistent performance—ideal for all-weather riding. Choose between durable sealed cartridge bearings or a low-friction ceramic option for riders who prioritize efficiency and speed. The DUB system is significantly lighter than legacy designs yet retains robust durability, offering a noticeable performance uplift without sacrificing reliability. Designed to work with press-fit and threaded frames and common industry interfaces, certain variants include manufacturer-specific left cups for seamless fitment on select platforms. Road, MTB, and SuperBoost-compatible options ensure flexibility for a broad range of builds and riding styles. Whether you’re upgrading for reduced drag, improved sealing, or a lighter package, this DUB bottom bracket family provides a high-performance, adaptable foundation for DUB cranksets—delivering smoother pedaling, enhanced longevity, and dependable daily use.
