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.