Description
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
| Material | Aluminum |
| S.H.I.S Upper | ZS56 |
| S.H.I.S. Stem Clamp Diameter | 28.6 Threadless |
| S.H.I.S Lower | ZS56 |
| Color | Black |
| Bearing Type | Cartridge |
| Defined Color | Black |






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