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

But from time to time up pops something that merits a second look. A case in point is [BUM]’s go-kart made entirely from Harbor Freight parts, a complete but rudimentary vehicle for around 300 ...

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 ...