GD
1923 - 1931 & 1935 - 1942
G.D. (Fabbrica Italiana Motocicli later Fabbrica Italiana Motocicli Dall'Oglio & Ghirardi, Bologna (1923-1931 and 1935-1939))was founded in 1923 in Bologna, Italy by Ghirardi and Dall'Oglio. Among the most professional competing machines in the races of the late twenties.
Guido Dall'Oglio designed the 122 cc two stroke with horizontal cylinders for this Italian brand that he and brothers Mario and Gherardo Ghiradi had founded.
In the mid twenties as they were the best racing bikes in their class. Renato Sceti won the Italian championship in 1924 and Mario Cavedagni came in second.
Cavedagni founded his own brand named CM. Dall'Oglio left the firm in 1926 to build his own motorcycles under the name Dall'Oglio.
The original mark was changed from then GD to GD Ghirardi. The technology for the motorcycles were developed by Oreste Druisiani and Mario Cavedagni, who had their own brand for a while, but were still on good terms with Mario Ghirardi.
1928 GD Ghirardi also produced 348 cc two-cylinder, OHC, single cylinder until 1929. In 1931 the production stopped, but at the insistence of designer Ubaldo Fangarezzi they tried it again in 1935. First there were motorized tricycles and in 1938 there was a 250 cc version of the old 175 cc which was based on a CM engine. GD was discontinued because - with the Second World War on the door - they saw more in cooperation and business with their weapons factory. The company was taken over around 1942 and manufacturing switched to wrapping and packing machinery.
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