Ducati Diana Mark 3 (1962 to 1966)

The Ducati Diana Mark 3 was produced between 1962 and 1966 and represents a clear evolution of the original Ducati Diana 250. Developed mainly for the U.S. market, it retained the classic 248 cc air-cooled single-cylinder four-stroke engine with Ducati’s signature bevel-gear-driven overhead camshaft, but with sportier tuning and improved performance. Power increased to around 26–27 hp, making it one of the most competitive lightweight sport motorcycles of its time. Positioned between the Diana and the later Mark 3 models, the Diana Mark 3 played a key role in Ducati’s transition toward more focused, high-performance singles and helped cement the brand’s sporting identity in the early 1960s.