The SRAM DUB bottom bracket series serves a fundamental purpose: it links your crankarms and ensures the efficient and enduring transfer of power to your drivetrain. To achieve this, we designed the DUB spindle as the essential unifying element. This one oversized spindle is compatible with all bottom bracket standards, enhancing crankarm compatibility, offering improved protection against environmental factors, and ensuring longer-lasting, smoother performance. Stronger, smoother, and more straightforward.

• DUB MTB Wide
• One oversized spindle to work across every bottom bracket specification
• Gutter Seal Technology™ seals against the elements
• Significantly lighter than the GXP® system
• Sealed cartridge bearings available in both stainless and ceramic versions
• ISO 4210 compliant. See Declaration of Conformity for details.

Bottom Bracket Frame Interface

• BSA, English/BSA (MTB Ai: 73mm)
• English/BSA (MTB/Road: 68/73mm)
• English/BSA 100mm
• English/BSA 68/73mm
• English/BSA 68mm
• English/BSA 73mm
• English/BSA 83-A
• English/BSA 83mm