DeDion-Bouton engines are considered the first of the high-speed, high-power engines producing a high horsepower for their weight. The earliest of them had coil ignition with mechanically operated contact breaker. DeDion-Boutons were used in motorcycles and quadricycles, and in their own tricycle, which was one of the first successful motor vehicles.
Specifications: single-cylinder; bore 90 mm., stroke 110 mm., displacement 689 cc., 6 hp.
Accession no. 1987L06