The 40-Series is the workhorse of Cane Creek's headset line-up. Representing the balance of performance, durability and value, the series incorporates all the features necessary for a robust, lightweight, long-lasting headset. Zero stack uppers press into head tube with very little stack height. Lowers are either zero stack or external cup.

• Sealed black oxide bearings
• Carbon-friendy compression ring captured in top cover, keeping shims in place
• Steel crown race with integrated seals
• Interlok spacer compatible

Specifications:

• Upper Stack Height: 8
• S.H.I.S. Stem Clamp Diameter: 28.6 Threadless
• Defined Color: Black
• S.H.I.S Lower: ZS56
• Weight: 89
• Crown Race: 40
• Bearing Type: Cartridge
• Color: Black
• S.H.I.S Upper: ZS44
• Lower Stack Height: 4