Ariel was a long standing manufacturer of motorcycles. Offering many models and variations through out the years. Ariel was one of many manufacturers in England to supply motorcycles for the World War 2 effort. Although Ariel built over 42,000 bikes, not much is known about these historic models. The British War Office held a series of tests to determine the suitability of civilian motorcycles for military use during a six month period in 1935The Four underwent a major revamp. Edward Turner had carried this out for the 1936 season, thus the new four, known as the 4G, was not shown until the 1937 season and went into production in September 1936. At the same time, a 599cc version of the four was proposed as the model 4F. This came by reducing the bores to 50.4mm, but these machines seem to have been exported. About 400 are believed to have been made. This shining example of a 1938 1000 Square Four 4g two pipe machine is one to be admired. Professionally restored in Hawai with great attention to detail utilizing origianl period correct parts during the process. Only 4288 of these bikes built over a 12 year period. A rare motorcycle worthy of a close inspection. And an exemplary addition to any collection