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|EC44/40
• Top Type: ZS - ZeroStack
• Top Head Tube Inside Dia.: 44.0mm
• Stem Clamp Dia.: 28.6mm
• Top Stack Height: 8mm
• Top Bearing Type: Black Oxide, Sealed
• Bottom Type: EC - External Cup
• Bottom Head Tube Inside Dia.: 44.0mm
• Crown Race Seat Dia.: 39.79mm
• Crown Race Type: Steel, Face-Sealed
• Bottom Stack Height: 12mm
• Bottom Bearing Type: Black Oxide, Sealed
• Material: 6061 aluminum