The French Cyclo company was the creation of Albert Raimond, one of the giants of derailleur history. Raimond developed the ‘Le Cyclo’ derailleur in 1923 (the design which became the Cyclo Standard in Britain). These derailleurs were imported into Britain from 1926. In 1932 the Great Depression had caused widespread protectionism, and Britain imposed high import duties on derailleurs imported from France. Raimond and his British Agent, Louis Camillis, responded by going into partnership and forming The Cyclo Gear Company to manufacture derailleurs and freewheels in Birmingham. By the end of the 1930’s the Cyclo Gear Company was clearly the leading player in the British derailleur market, while the French company was rapidly losing ground to Simplex.
It’s amazing what you can find out about Birmingham cycle product manufacture when you have a good look.
Seen here at the amazing Disraeli Gears.