Cotton (motorcycle) - The Triangulated Frame

The Triangulated Frame

By 1913, F.W. Cotton had engaged in hill climbs and trials, and recognised the limitations of the “diamond frame” design, little different from a bicycle. He designed his own, and had examples made by Levis. Being a lawyer, in 1914 he patented the "triangulated frame" to protect his design that was a Cotton feature until the Second World War. The First World War intervened and it was not until 1918 that the Cotton Motorcycle Company was founded; the first Cotton motorcycle appeared in 1920.