Super-smooth steering, quality materials, cutting-edge design and serious durability are all hallmarks of Cane Creek’s 40-Series headsets.

Technical Description: ZS44/28.6/H8/K|ZS56/40/H4/K
Top Type: ZS – ZeroStack
Top Head Tube Inside Dia.: 44.00mm
Stem Clamp Dia.: 28.6mm
Top Stack Height: 8mm
Top Bearing Type: Black Oxide, Sealed
Bottom Type: ZS – ZeroStack
Bottom Head Tube Inside Dia.: 55.95mm
Crown Race Seat Dia.: 39.79mm
Crown Race Type: Steel, Face-Sealed
Bottom Stack Height: 4mm
Bottom Bearing Type: Black Oxide, Sealed
Material: 6061 aluminum
Weight: 109g