Home » headsets » Tapered Headsets » hs3 TAPERED HEADSETS HS3 ZS44/28.6 | ZS56/40 Alloy Cap/Steel Cup Cartridge Bearings /Ball Retainer 1-1/8″ to 1.5″ Tapered Steerer Top Nut: 1-1/8″ Cup O.D.: 44/56 Crown Cone: 39.8 Height: 13.1 Technical Diagram