CERTIFICATIONS: CE 89/686 EEC, EN 1078. The revolutionary form of the time trial helmet. After two years of development, Rudy Project presented its revolutionary concept of a time trial helmet. The Wingspan was designed in collaboration with aerodynamics and wind tunnel specialist John Cobb. Its exceptionally good ventilation (adjustable in three steps), comfortable fit and outstanding flow characteristics make this helmet the perfect aid for road cyclists and triathletes in the fight against time.. Aerodynamic Triathlon and Ironman Helmet. Wingspan is the most aerodynamic and versatile time trial, triathlon and Ironman helmet. It is the result of the maximum levels of research and development, use of advanced materials and technology, meticulous attention to detail.. Tunnel Tested by the Guru John Cobb. Wingspan evokes the energy and freedom of flight which, translated into the language of sports, correspond to speed and lightness. Designed for time trial competitions, this helmet is characterized by a contained and streamlined shape and has large ventilation slots that favor constant air circulation without harming the overall aerodynamics.. Gender: Unisex. Weight: 290g. Size information: Unisize = 54-59cm