40-Series Integrated 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

Upper Stack Height	9
S.H.I.S. Stem Clamp Diameter	28.6 Threadless
S.H.I.S Lower	IS52
Bearing Type	Cartridge
Crown Race	40
Color	Black
S.H.I.S Upper	IS42
Lower Stack Height	1