As successor to the grand tour and world championship winning tt kit the crono cx takes aero performance to the next level fully uci legal for use in sanctioned time trials as well as triathlons unique bottle surface pattern developed and wind tunnel tested to maximise air penetration jossa membrane cap for fast and easy drinking in race conditions robust fiberglass cage holds the bottle close to the frame for optimum aerodynamic performance and low weight weight 98 grams 5