Affordable drop-in 1-1/8" headset with crown race, top cap and compression ring, star nut and compression cap.Item Specifications: Upper Stack Height: 6.7, Defined Color: Black, S.H.I.S. Stem Clamp Diameter: 28.6 Threadless, S.H.I.S Lower: IS52, Weight: 83, Crown Race: 40, Color: Black, Material: Alloy, S.H.I.S Upper: IS42, Lower Stack Height: 2,