40-Series Zero Stack headsets set the standard for performance durability and value. Drawing from the premium 110-Series design the 40-Series includes all the features necessary for a durable lightweight long-lasting headset.Sealed ZN40 cartridge bearings 6000 series alloy cups and materials Steel crown race with integrated seals Interlok spacer compatible
| Color | Black |
| Bearing Type | Cartridge |
| Weight | 53 |
| Upper Stack Height | 15 |
| S.H.I.S Upper | ZS44 |
| S.H.I.S. Stem Clamp Diameter | 28.6 Threadless |
