Zephyr was a motorcycle announced in 1917 and produced after the end of World War I, until 1922. This motorised pedal cycle reached the market after the end of the war. It was also sold under the name of Aerolite. In its completed form it weighed just 70lb/32 kg, and was therefore ideal for those who could not handle a heavy machine. It was also intended for ladies' use as an open-frame version was also available. The engine was a 131 cc unit.