Tags: Motorcycle.

The Roper steam velocipede was a steam-powered velocipede built by inventor Sylvester H. Roper of Roxbury Boston Massachusetts United States sometime from 1867–1869. It is one of three machines which have been called the first motorcycle along with the Michaux-Perreaux steam velocipede also dated 1867–1869 and the 1885 Daimler Reitwagen. Historians disagree over whether the Roper or the Michaux-Perreaux came first.

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