NoThreadSet is built to be precise and dependable and a classic. Engineered, manufactured and assembled in Portland, OR. Patented GripLock retention design for reliable headset adjustment. FEATURES: Engineered, manufactured and assembled in Portland, Oregon USA Chris King made-in-house bearings SPECS: Color: Matte Black S.H.I.S. Stem Clamp Diameter: 28.6 Threadless Crown Race: 30 S.H.I.S Lower: EC34 Bearing Type: Cartridge S.H.I.S Upper: EC34 Defined Color: Black Lower Stack Height: 13.7 Upper Stack Height: 17.7 Weight: 98