A PF30 bottom bracket with outboard angular contact bearings for 30mm spindle cranksets, a popular match for RaceFace Cinch cranks.

Highlights

  • Two machined aluminium cups thread together, keeping the bottom bracket stable in the frame
  • Increases bearing life and simplifies maintenance, with no more creaking and smoother operation
  • Fast bearing replacement
  • Enduro angular contact bearings engage all balls across a larger surface area, cutting friction and wear
  • For 30mm diameter crank spindles, including RaceFace Cinch

Spindle length note

Spindle length must be 103mm or longer when used in a 68mm wide shell, or 108mm or longer when used in a 73mm wide shell.

Shell width note

Specialized Carbon OSBB frames with a 61mm shell width need an additional 3.5mm cup spacer (sold separately).

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

Fits PF30 and Specialized Carbon OSBB frames with a 46mm I.D. shell, across 61mm to 83mm shell widths, and 30mm diameter crank spindles (including RaceFace Cinch).

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.
  • Two machined aluminium cups thread together, keeping the bottom bracket stable in the frame
  • Increases bearing life and simplifies maintenance, with no more creaking and smoother operation
  • Fast bearing replacement
  • Enduro angular contact bearings engage all balls across a larger surface area, cutting friction and wear
  • For 30mm diameter crank spindles, including RaceFace Cinch
Frame interfacePF30, Specialized Carbon OSBB
Shell I.D.46mm
Shell width range61mm to 83mm
Crank spindle diameter30mm
BearingsEnduro angular contact
Over bearing width89mm in a 68mm wide shell
Tool pattern48.5mm x 16-notch
SKU SCV-WMBB-PF30-OUT-30MMAC
Brand Wheels MFG