Threaded ABEC-3 bottom bracket for Fat Bike PF41 (BB121) and 24mm spindle diameter cranks. Machined cups thread together for stability, increased bearing life, and simple installation and maintenance. No more creaking. Smooth operation. Fast bearing replacement.
Bearings: Enduro ABEC-3
Bottom Bracket/Frame Interface: PF41 BB121
Bottom Bracket Shell Width (mm): 105mm 132mm
Bottom Bracket Shell I.D.: 41mm
Crank Spindle Type: Shimano Hollowtech II, FSA MegaExo, RaceFace EXI