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

Technical Description: ZS49/30/H4/K
Bottom Type: ZS – ZeroStack
Bottom Head Tube Inside Dia.: 49.61mm
Crown Race Seat Dia.: 30.015mm
Crown Race Type: Steel, Face-Sealed
Bottom Stack Height: 4mm
Bottom Bearing Type: Black Oxide, Sealed
Material: 6061 aluminum
Weight: 58g