- New
Description
The SRAM DUB bottom bracket connects the crank arms and transfers power. Its single oversized spindle fits all bottom bracket specifications. Gutter Seal Technology helps protect against the elements. It is significantly lighter than the GXP system. Sealed cartridge bearings are available in stainless steel and ceramic versions.
Technical specifications
- Bottom bracket-to-frame interface: English/BSA 83 mm
- Crank-to-bottom bracket interface: DUB
- Bearing type: standard
- Spindle diameter: DUB
- Chainline (distance from frame center): 55.0 mm
- Cup material: aluminium
- Weight: 76 g
DUB technology
The relationship between the bottom bracket spindle and bearings is at the core of DUB technology. The design brings stiffness and durability together. It simplifies the system and improves integration between the chainring, crank arms, spindle and bottom bracket. This system-level approach supports better drivetrain performance.