Villiers Engineering was a manufacturer of motorcycles and cycle parts, and an engineering company based in Villiers Street, Wolverhampton, England.
In the 1890s John Marston's Sunbeam had become extremely successful, by relying on high quality of production and finish. But Marston was dissatisfied with the pedals on his machines, which he bought in. In 1890 he dispatched his son Charles to the US on a selling trip, but included in his instructions that Charles must discuss pedal engineering with Pratt and Whitney in Hartford, Connecticut and come back with a high class pedal and the machinery for making it. Charles said that the Villiers Engineering Co. was "the ultimate fruit" of his trip to the US, being impressed by the production system and the labour saving devices. He pointed out that "it was not possible to develop these at Sunbeamland, which had long been working on another plan, but it was possible to start them in a new factory".
As a result of the tour, in 1898, John Marston bought a small Japanning works based in Villiers Street, Wolverhampton. Under the direction of Charles, the company made cycle parts for the Sunbeam company. As the factory was producing more parts than Sunbeam required, it sold components to other manufacturers.
1902 was a momentous year for Villiers. Firstly, John Marston sold the company to his son Charles for £6,000 on a loan against future profits. Secondly, it developed and patented the cycle free-wheel, which every cycle manufacturer required. The production of free wheels reached its peak just after WWII, as the company produced 80,000 per week or 4 million per year.
Apart from the production of freewheels outlined above, the company produced its first engine in early 1912, a 350cc four-stroke complete with integral two-speed gearbox. Later that year it developed a 269cc two-stroke (70mm bore and stroke) and the simplcity of this engine and attractive price made it a rapid success. During 1913 the Sun-Villers motorcycle was launched manufactured by the Sun Cycle & Fittings Co.