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 (36x45), Campy Hiddenset 42.0mm ID (45x45) , ZS (ZeroStack), or EC (traditional, External Cup) available for 1 inch, 1-1/8 inch and tapered steerers
