Description 40-Series Solutions: separate top and bottom headset cup assemblies for tapered, reducer and conversion applications (mix & match system helps reduce inventory overlap) Same features and materials as 40-series complete headsets Top assemblies include star nut and top cap, while bottom assemblies include crown race (Carbon indicates a carbon top cover) Cane Creek Integrated 41.0mm ID (36×45), Campy Hiddenset 42.0mm ID (45×45) , ZS (ZeroStack), or EC (traditional, External Cup) available for 1 inch, 1-1/8 inch and tapered steerers TECH SPECSmodel40-Series upperS.H.I.S.ZS44/28.6upper/lowerupperstack15mmcolorblackweight53g
