Home » headsets » Tapered Headsets » p701a TAPERED HEADSETS P701A EC29/25.4-24tpi | EC29/27 EC30/25.4-24tpi | EC30/26 Alloy Cap & Cups Steel Crown Race Sealed Bearings Top Nut: 22.2 Cup O.D.: 30/30.2 Crown Cone: 27/26.4 Height: 35.4 Technical Diagram