The MV Agusta 350 cc racers were motorcycles produced by MV Agusta between 1954 and 1976 and raced in the 350 cc motorcycle GP championships. 10 world titles were achieved by riders John Surtees, Gary Hocking and Giacomo Agostini on these machines. MV Agusta 350 4C 1954–1964 Count Domenico Agusta never released technical data of his machines and personnel, technical staff and riders were forbidden to divulge anything about the machines. Because a number of newer machines were later sold through auctions, data is known about these, but the machines from the early years sometimes remain a mystery. Of the original 350 4C is really only known that it was a reduced version of the MV Agusta 500 4C. Designer Piero Remor initially provided that machine with experimental and often useless technology, but rider Leslie Graham made some improvements. In 1953 that machine had a telescopic forks and a double cradle frame. It had a Four-stroke transverse in-line four-cylinder engine with DOHC with two valves per cylinder. Technical data MV Agusta 350 4C 1954–1964 Results 1954–1964 1954 Bill Lomas and Dickie Dale received MV Agustas for the 500 cc Senior TT on the Isle of Man, but also started with the 350 cc version in the Junior TT. It was not a success: Lomas was only 7th and Dale was 25th. For the time being, MV Agusta still had to bow to the AJS 7R and the Norton Manx. 1955 In 1955 the 350 cc MV Agustas did not start in GPs, possibly because they were concentrating on the 250 cc class. 1956 When John Surtees came to MV Agusta in 1956, he brought his knowledge of the Norton Featherbed frame with him. The improvements to the 500 cc MV Agusta were also applied to the 350 cc four-cylinder. Surtees finished second in the 350 cc TT in Assen and won the Grand Prix of Belgium, but after a nasty fall in the Grand Prix of Germany, breaking an arm, he was eliminated for the rest of the season. Umberto Masetti rode a send MV in the Belgian and Nations Grand Prix at Monza. Carlo Bandirola also raced an MV at Monza. Surtees finished fourth in the 350 cc world championship. 1957 Surtees drove the MV Agusta 350 four-cylinder in almost all the 1957 GPs, but the machine was hopelessly unreliable. He finished fourth in the Junior TT, but dropped