Cane Creek 10 Series Complete Headset, EC34/28.6mm Upper and EC34/30.0mm Lower

The 10-Series uses economical bearings, a split crown race, and simpler machining in the cups than Cane Creek's higher end headsets, but shares the same internal geometry so replacement parts can be upgraded. External cups press directly into head tube. Black oxide bearings Split glass-reinforced polyamide crown race Compatible with Cane Creek Interlok spacers Compatible with straight steerer 1-1/8" forks Color: Black Crown Race: 30 S.H.I.S. Stem Clamp Diameter: 28.6 Threadless Bearing Type: Cartridge S.H.I.S Lower: EC34 S.H.I.S Upper: EC34 Defined Color: Black Lower Stack Height: 12 Weight: 88.29 Upper Stack Height: 16