ordinary cycle was not safe, with a "header" accident an ever-present danger. Others had experimented with chain-driven "safety cycles" but the Rover made its mark to the extent that "Rover" (spelled with a W rather than a V) means "bike" in countries such as Poland.

In due course, motor-driven bicycles became motor-cycles and were followed by motor cars. John Kemp Starley experimented with an electric tri-car around 1888 but the petrol-driven Rover 8hp