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

Bearing Type	Cartridge
Color	Black
Crown Race	40
S.H.I.S Lower	ZS62