but they can go as high as 9,000 rpm. Just like a conventional kart, altering the gearing is a quick job, too, thanks to a simple sprocket change, be it for either the larger sprocket on the axle ...

and the rear axle comes from a post hole digger. Power comes from the Predator gasoline engine, which seems to be a favourite among these channels. The result is a basic but serviceable go-kart ...

Enter [HowToLou], who has given his go-kart a reversing option by the addition of an electric motor ... 12 V item which drives a V-belt to the axle. The motor is mounted on a pivot with a lever ...