Tandem bike

Patents related to tandem bicycles date from the mid 1880s. In approximately 1898, Mikael Pedersen developed a two-rider tandem version of his Pedersen bicycle that weighed 24 pounds, and a four-rider, or "quad", that weighed 64 pounds. They were also used in the Second Anglo-Boer War. Tandem popularity began to decline after World War II until a revival started in the late 1960s. In the UK The Tandem Club was founded in 1971