Jem Stansfield, a former sheepherder and current rocket/scientist/inventor, took a couple of air canisters normally used by firefighters as breathing apparatuses and latched them onto his moped. Now, he’s got a functional air-powered bike that emits no carbon emissions.
How does it work? Two compressed air cylinders drive the pair of rotary air engines to propel the moped to a top speed of 18 mph for about 7 miles. After a quick and simple fill-up for air and it’s ready to go “fast” again.