The SRAM GXP bottom bracket is a threaded unit for BSA English-threaded frames running SRAM GXP cranksets. GXP uses an asymmetric spindle — 24mm on the non-drive side, 22mm on the drive side — which threads into the non-drive cup for a secure installation. Widely compatible with SRAM road and MTB cranksets that use the GXP spindle standard.

Highlights

  • GXP threaded bottom bracket for BSA English-threaded frames
  • Fits 68mm (road) and 73mm (MTB) shell widths
  • Asymmetric GXP spindle — 24mm NDS / 22mm DS
  • Works with the full range of SRAM GXP cranksets (road and MTB)
  • Threaded installation — no press required, fully serviceable

Fit and compatibility

Fits BSA English-threaded bottom bracket shells (1.37" × 24tpi). Compatible with SRAM GXP cranksets only — not for DUB or BB30 spindles. Confirm shell width before ordering. Not compatible with Italian-threaded frames.

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
  • Gutter Seal Technology™ drastically improves sealing against the elements
  • GXP's Gutter Seal design reduces friction
  • Improved tool engagement
  • Sealed cartridge bearings
  • English or Italian threads

Specifications

BB-frame interface English/BSA (MTB/Road: 68/73mm), English/BSA (MTB: 83mm), English/BSA 100mm, English/BSA 68/73mm, English/BSA 68mm, English/BSA 73mm, English/BSA 83mm
Chainline n/a
Spindle length n/a
Support E-type FD n/a
Crank-BB interface GXP
Bearing type Standard
Spindle diameter 24mm
Cup material Aluminum
Weight (g) 108
Weight Based On BB GXP Team English 68/73
SKU SRM-BB-GXP-A1
Model # BB-GXP-A1
Barcode # BB-GXP-A1
Brand SRAM