Cane Creek 110-Series External Cup Complete for 34mm Head-Tube (1-1/8-Inch Stem Clamp Diameter) 7075 T-6 Internally Contoured and Relieved Cups and Covers Minimize Weight and Maximize Strength Cut in Cane Creek's Fletcher, NC Manufacturing Facility Top-Quality Polishing, Anodizing and Laser Etching "Dual-Seal" 7075 T-6 Aluminum Crown Race for Maximum Sealing Efficiency Updated Compression Ring Design Further Enhances "Carbon Friendly" Uses by Evenly Distributing Clamping Forces on the Steerer