A climbing wheel with an aero advantage, designed to be ridden in the mountains. The SES 3.4 is ENVE's climbing wheelset 21mm internal width For 23-28mm tyres (optimised for 25mm) 20 hole front, 24 hole rear Front weight - 458g Rear weight - 459g Textured carbon brake track Tubeless compatible Only use ENVE brass nipples A climbing wheel with an aero advantage, designed to be ridden in the mountains. Road cyclists who require maximum versatility for riding in mountainous terrain and variable weather conditions. Since the introduction of the original SES 3.4 ENVE have implemented new design concepts across the SES lineup that result in a faster wheel and improved ride experience. The SES 3.4 features road tubeless compatibility, 25mm tire optimization, molded carbon brake track technology, and optimized SES aero rim shaping to ensure maximum efficiencies for a shallow aero wheel. Equally at home in the mountains as in the valleys, the SES 3.4 is the most versatile Smart ENVE System aero wheel. Technical Specifications RIM SPECS FRONT REAR Depth 38 42 Width 21 21 Hole Count 20 24 ERD 580 573 RTS 25mm 25mm Weight 432g 439g