This short video was meant to highlight Mr. Bate's invention of an adaptor which allows a gasoline engine to run on methane gas. However, near the end of the video he shows another of his inventions ... a kit which he says will attach to any bicycle and make it almost "self-propelled". The bike part of the video starts at minute 11:45. Cool! Bate's Car: Sweet as a Nut by Tony Ianzelo, - NFB .