Cane Creek 110 Series 41mm Headset Top Assembly IS/41/28.6/H15 41.8g Black Frame Mount Width-18 Not compatible with Ultegra 8000-GS

Not compatible with Ultegra 8000-GS or 8050-GS (medium cage) nor with the clutch equipped Ultegra RD RX800/RX805

}Surly Midnight Special 650b Fork 1-1/8" 40mm Offset Black

The trigger glides on precise near frictionless sealed cartridge bearings for an exceptional feel

5 inch fork steerer

Cane Creek 110 Series 41mm Headset Top Assembly IS/41/28.6/H15 41.8g Black Frame Mount Width-18 Not compatible with Ultegra 8000-GS110 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 110 series complete headsets including 110 year warranty Top assemblies include star nut and top cap, while bottom assemblies include crown race Cane Creek Integrated 41. 0mm ID (36x45), Campy Hiddenset 42. 0mm ID (45x45) , ZS (ZeroStack), or EC