Cane Creek 40 ZS56/28.6 Complete Headset - Includes Upper and Lower, Black

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 Color: Black S.H.I.S. Stem Clamp Diameter: 28.6 Threadless Bearing Type: Cartridge S.H.I.S Lower: ZS56 Material: Aluminum S.H.I.S Upper: ZS56 Defined Color: Black