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.
- 6000 series alloy cups and materials
- Carbon-friendy compression ring captured in top cover, keeping shims in place
- Interlok spacer compatible
- Sealed black oxide bearings
- Sealed ZN40 cartridge bearings
- Steel crown race with integrated seals