Promax IG-45 Alloy Sealed Integrated Tapered 1-1/8 Top, 1.5" Bottom Headset Includes 1-1/8" Fork Race BlackThe IG 45 integrated headset features an aluminum cap, bearing cover and crown race with super smooth rolling, precision 4545 bearings. Product Specifics Color: Black Bearing Type: Sealed Cartridge Crown Race: 30 Defined Color: Black S. H. I. S Upper: IS42 S. H. I. S. Stem Clamp Diameter: 28. 6 Threadless S. H. I. S Lower: IS52 Today's Stock Status 1 Available to ship in 2 4 Business Days UPC: 657993126257 EAN: Not available Manufacturer Part Number: