This is a Cane Creek Headset 40-Series Cartridge Bearing with a 1-1/8" size and 45x45° contact.
- 40-series crown races are cross compatible with all series headsets
- Black oxide bearings
Fits Model: ZN 40 (41.8mm) bearing
Size: 1-1/8" (Integrated 45x45)
Note: This is a single bearing