Mondial was able to make some money with transport tricycles and for Agusta, motorcycle production was still more a hobby than a profession. Count Domenico Agusta reversed his decision and continued the racing activities. Without other factory competition for the 1958 season, MV Agusta elected to use the tried and tested single-cylinder. Tarquinio Provini won four of the six 250 cc races that season and became a world champion by a huge margin, and MV won the Constructors Championship. The twin-cylinder machine was used by the works riders of Carlo Ubbiali and Tarquinio Provini for the 1959 season. Some privateers competed on the older single-cylinder machine. Technical data The engine was very slim. It was an air-cooled, twin-cylinder, four-stroke engine with double overhead camshafts (DOHC). The camshafts were driven by a gear train. The valves had diameters of 34 mm (inlet) and 32 mm (outlet) and had an angle of 90 ° between them. The cylinders were tilted 5 ° forward. The engine had a bore and stroke of 53 mm × 56 mm. Engine power was 36 bhp at 12,500 rpm, an improvement over the 250 single's 29 bhp. That was a very high end speed for that time and many experts thought that the engine would not be reliable using so many revs. A wet sump lubrication system was used and the ignition system was by ignition coil. Two Dell'Orto SS 31 A carburetors were used. A dry multi-plate was driven by gears from the crankshaft. The gearbox had six or seven gears, dependent on circuit, and was of the cassette type. Final drive was by chain. The machine was extremely slim, and probably developed by Arturo Magni. The frame, a chrome molybdenum double cradle, exhibited all the characteristics of Magni's later frames. The tube diameter was 25 mm × 1.2 mm. The front fork was a telescopic fork, and the rear suspension was swingarm with hydraulic shock absorbers. 210 mm drum brakes were used front and rear, the front being Results 1957 The machine was only entered in one race in 1957, the Belgian Grand Prix at Spa-Francorchamps, which John Hartle won on the 250 Bicilindrica. 1959 In the opening race of the season, the Lightweight TT, Tarquinio Provini won with Carlo Ubbiali second, less than 1/2 second behind. Ubbiali won the next race at Hockenheimring, followed by Provini winning at the TT Circuit Assen. Ubbiali also