Home » headsets » Tapered Headsets » cs3 TAPERED HEADSETS CS3 ZS44/28.6 | ZS56/40 Nylon Cap/Steel Cup Ball Retainers 1-1/8″ to 1.5″ Tapered Steerer Top Nut: 1-1/8″ Cup O.D.: 44/56 Crown Cone: 39.8 Height: 8.3 Technical Diagram