Home » headsets » Tapered Headset – Angle Limited » p560a TAPERED HEADSETS - ANGLE LIMITED P560A ZS44/28.6-26tpi | ZS56/40 Alloy Sealed Bearings 1-1/8″ to 1.5″ Tapered Head Tube & Steerer Top Nut: 25.4 Cup O.D.: 44/56 Crown Cone: 39.8 Height: 20.1 Technical Diagram