A press-fit 41mm angular contact bottom bracket built for fat bike frames running a 24mm Shimano crank spindle, with cups that thread together for a stable, creak-free fit.

Highlights

  • Press-fit 41mm (PF41) angular contact bottom bracket for fat bike frames
  • Machined cups thread together for stability and increased bearing life
  • Simple installation and maintenance, with fast bearing replacement
  • For 24mm diameter Shimano crank spindles

Tool needed

Use only bottom bracket tools compatible with 16-notch MegaEvo bottom brackets, such as the FSA MegaEvo tool or Park Tool BBT-29.

Fitting

Tune's workshop can fit this bottom bracket for you — the right cup tool and torque setting matter, especially on a press-fit or T47 shell.

Compatibility & fit

Requires a fat bike frame with a 41mm inner diameter bottom bracket shell, in either 121mm or 132mm width, and a 24mm diameter Shimano crank spindle.

Wheels Manufacturing backs this bottom bracket with a 1 year warranty against manufacturing defects, plus 30-day returns. For warranty support, return the product to Tune Cycles and we'll manage the claim with Wheels Manufacturing's Australian distributor.
  • Press-fit 41mm (PF41) angular contact bottom bracket for fat bike frames
  • Machined cups thread together for stability and increased bearing life
  • Simple installation and maintenance, with fast bearing replacement
  • For 24mm diameter Shimano crank spindles
Frame interfacePF41 press-fit, 41mm shell I.D.
Shell width121mm or 132mm
Crank spindle diameter24mm (Shimano)
Bearing typeAngular contact
Tool pattern16-notch MegaEvo (FSA MegaEvo / Park Tool BBT-29)
SKU SCV-WMBB-BB86-FAT-AC
Brand Wheels MFG