

Eduardo Giró designed a motorcycle that compensated for its power deficit by following a philosophy of lightweight, a small frontal area and engine reliability combined with outstanding handling. Ossa achieved early success in the 250cc class of Grand Prix motorcycle racing, competing with an innovative chassis designed by Giró's son, Eduardo that was unique for the era. Inspired by this success, the factory decided to compete abroad in order to make inroads into the international market.ġ968 Ossa 250 cc Grand Prix racer Monocoque Grand Prix racer Against all the major Spanish factories, Ossa motorcycles finished a surprising first and second. Their first success came at the 1967 24 Hours of Montjuich on the streets of Barcelona. The Ossa firm was a strong supporter of all forms of motorcycle sport including: road racing, motocross, enduro and observed trials. In addition to their suitability for racing, in terms of power-to-weight, Ossa motorcycles gained a reputation for reliability on and off the race track.

In the United States and Canada, off-road motorcycling - and particularly the newly imported sport of motocross to which the light-weight and powerful Ossa was well suited - enjoyed a surging popularity. Ossa reached its highest production levels in the motorcycle boom of the 1960s, exporting large numbers of exports to other European countries, but also significantly, to North American markets. After World War II, Ossa obtained superior two-stroke engine technology from the German DKW factory as war reparations and, began mass-producing two-stroke motorcycles in 1949. Before World War II, Giró was the Spanish sidecar racing national champion, along with his co-pilot, the future founder of Bultaco motorcycles, Francisco Bultó. The company's four-leaf clover emblem wasn't actually a four-leaf clover it is the escapement mechanism of a film projector. The original Ossa company got its start in 1924 making movie projectors for its home market in Spain.
