More aerodynamics than ever. Highest aerodynamic performance with excellent ventilation, which makes this helmet ideal for all seasons. Developed and projected with the Astana team, the Air Speed was tested with other helmets to check the aerodynamic resistance in the wind tunnel in Magny-Cours, France. Tests in cycling magazines have already shown that aero equipment can save energy in the wind more cheaply than features on the aero racer. Great semi-aero helmet. Chrono Aerodynamics - The aerodynamic flows were the main feature of this project, as if the curves of the helmet had been shaped by the air flow. At an average speed of 40 km / h, AIR MASTER achieves the same performance and aerodynamics code as the traditional LIMAR SPEEDKING time trial helmet, with the natural advantage of b