1961 saw the start of this successful partnership; Francesco Villa refined and elaborated the "old" Mondial DOHCs, managing to make them competitive and to win the Italian speed title for three consecutive years. Technicians Melotti and Turicchi, from the former race division of Mondial, were made available to Francesco for the creation of a 50cc to compete in world championship races. The engine, a vertical single cylinder, DOHC capable of 7 bhp a 14,000 rpm, primary drive gear, multi-disc clutch and six-speed gearbox, was installed on a double cradle tubular frame, with telescopic front fork and rear swingarm, with a total weight of 50 kg and capable of 130 kph. The track debut took place in April of 1962 on the circuit at the Aerautodromo di Modena, Villa took first place. After this it took part in hill climbs, taking second place in the Campionato Italiano della Montagna.

Mondial, although not officially taking part in races, prepared several machines to be sold to private individuals or to trusted riders, such as Francesco and his brother Walter. The Modenese rider-technician, at the time, had the great credit of being one of the first to grasp the potential of the modern school two-stroke engines with rotating disc distribution.

He forged a friendship with the German technician Peter Dürr, a great engineer and expert with two-stroke engines, and by the mid-sixties, with the 60cc class, Francesco prepared a single-cylinder two-stroke with cross current injection, primary drive gear, multi-disc clutch and four-speed gearbox. With a compression ratio of 11:1, power was around 12 bhp at 10,000 rpm. The frame, except for a few small changes, was the same as that of the 50cc, and allowed Mondial to show off this horizontal single-cylinder two-stroke that set in motion a series of successes, and with which Walter Villa, brother of Francesco, won the Italian title in 1965 and again in '66 and '67. Continuing in their unofficial capacity, in 1966 the Villa brothers in joint collaboration, after producing a few prototypes in 1965, presented two new 125 and 250cc motorcycles, both twin-cylinder two-strokes.

The new 125cc, equipped with drum brakes, had an air-cooled engine, with rotating disc valve, capable of 30 bhp at 14,000 rpm, and replaced the previous single-cylinder model that developed "only" 23 bhp at 11.500 rpm. The 250cc model had a mixed cooling system, water for the cylinders and air to the cylinder head, a compression ratio of 11.5:1 and a power output of 48 bhp at 11,500 rpm. The 250 had a front-mounted disc brake. The cylinders of both these machines were flanked and inclined at 30 degrees.

However, in subsequent years, these two machines would make only the odd appearance at the race tracks. At the conclusion of his collaboration with Mondial, Francesco slimmed down his participation in racing to devote himself to new aspirations, with the idea of becoming a rider-constructor. In 1966, he came out on track for the first time at Riccione with the Beccaccino, a 125cc of his own construction, finishing in third place, he came second in the Coppa d'Oro Shell at Imola and first at Cesenatico.