‘Mountain biking’ developed in the mountains of north California in the early 1970s. The first models were manufactured in the United States then by Japanese firms. French manufacturers did not begin producing their own models until some ten years later, in 1983. Mountain biking developed considerably in the 1990s, both as a competitive sport and leisure activity, reflecting a new taste for nature, thrills and a certain spirit of adventure. Peugeot launched its first mountain bike, the VTT1 on the French market in 1987. The Dual Impact model has an aluminium frame, telescopic suspension fork and quite thick studded tyres. It has 24 gears and weighs approximately 13 kilos.