By the end of 1956, Ducati production included a four stroke Tourist 174 and Special and Sport models, capable of considerable performances (110-120-135 km/h). At the 1957 Milan Salon, the above-mentioned models appeared together with an "America" model.
During 1958, Ducati also produced the 200 cc "Elite". 1958 also marked the triumph of the desmodromic system, which engineer Taglioni had been developing since 1955. This project resulted in the famous twin-cylinder 250 cc of 1960, ordered from Ducati by the world famous English racer Mike HailwoodTM, who specifically requested a machine of "superior" performance.
