Race Face Cinch – BB124 Fatbike Bottom Bracket Cups – PF41-121.5/124-30 

Race Face Cinch BB92 cups are compatible with Shimano pressfit BB shells – BB121.5, BB124 (Fatbike) and 30 mm crank spindles. 

  • Custom 19 ball flanged retainer bearings
  • Allows the use of a 30mm spindle with Shimano press fit shells (bb shell with 41 mm inner diameter) without decreasing ball bearing size
  • Bearings races are fully coated for improved corrosion resistance
  • Bearings are factory filled with Phil wood grease
  • Includes an industry exclusive inner sleeve to protect against water ingest from inside your frame
  • Built for: Cross Country, All Mountain, Freeride, Downhill.