ZN40-Series bearings are corrosion-resistant zinc-coated machined steel cartridge bearings with hardened steel balls which vastly increases the longevity of your headset.Compatible with 110- 40- and 10-Series headsets
| Cartridge Bearing Angle | 45x45 |
| Bearing I.D. (mm) | 40.15 |
| Bearing Type | Cartridge |
| Bearing O.D. (mm) | 52 |
| Thickness | 7 |
