which Lyons had co-founded back in 1923. In 1940, World War II brought an end to production as the factory was turned over to produce Rolls-Royce Merlin aero-engines. After hostilities had ceased there were no suitable engines available so the company was wound up. Racing career In 1928, George Brough recorded at Arpajon, unofficially the world's fastest speed on a solo motorcycle. Brough was noted for riding wearing a flat-cap which he had specially made to his requirements. References Further reading Clark, Ronald H. (1964) Brough Superior, The Rolls Royce of Motor Cycles People from Basford, Nottinghamshire Sportspeople from Nottinghamshire English motorcycle racers British motorcycle designers British automotive engineers 1890 births 1970 deaths British motorcycle pioneers