Whizzer Date of Manufacture: 1939 Engine Size: 150CC
Whizzer began production in 1939 by incorporating a side valve engine that could be mounted on a standard bicycle frame. On early models, the engine's power was delivered via belt to a roller that was in contact with the rear tire easing the effort of pedaling the bicycle
Later models used a flywheel and pulley system on the rear wheel to deliver power via a jockey pulley to adjust the belt tension on the rear wheel.
