SRAM DUB PressFit bottom bracket adapts the DUB 28.99mm spindle to frames with a standard PressFit shell — the 41mm inner diameter shell found on many road, gravel, and MTB frames. Available in 68mm and 73mm shell widths, it covers the most common PressFit applications without requiring frame modification.

Highlights

  • DUB PressFit bottom bracket for standard PF86/PF92 shells
  • Fits 41mm inner diameter PressFit shells
  • 68mm and 73mm shell width options
  • 28.99mm DUB spindle — compatible with all SRAM DUB cranksets
  • Cup and bearing designed for serviceability

Fit and compatibility

Fits standard PressFit shells with 41mm inner diameter (PF86, PF92). Compatible with SRAM DUB cranksets only — not for GXP or threaded-spindle cranksets. Confirm shell inner diameter and width before ordering. Professional press installation recommended.

Installation. Service. Compatibility. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub.

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Features
  • One oversized spindle to work across every bottom bracket specification.
  • Significantly lighter than PFGXP system
  • Easier installation by allowing you to press the bearing cups into the frame
  • Sealed cartridge bearings available in both stainless and ceramic versions

Specifications

BB-frame interface PressFit (MTB/DH: 104.5mm), PressFit (MTB/DH: 107mm), PressFit (MTB: 121mm), PressFit (MTB: 89/92mm), PressFit (Road: 86.5mm)
Chainline 55.0mm, n/a
Spindle length n/a
Support E-type FD n/a
Crank-BB interface DUB
Bearing type Ceramic, Standard
Spindle diameter DUB
Cup material Steel
Weight (g) 72
Weight Based On BB92
SKU SRM-BB-DUB-PF-A1
Model # BB-DUB-PF-A1
Barcode # BB-DUB-PF-A1
Brand SRAM