In karting circles, Hartman products are notable for their tubular steel frames, front disc brakes, rack-and-pinion steering, ...

Instead, we see a pretty regular guy, making a pretty regular go-kart, out of an absolutely regular hand truck. The resulting ...

While they specialize in making go-karts and minibikes as stupid fast and dangerous as possible, they do all sorts of things relating to small-displacement motors. One of their latest videos is a ...