This is a 2 wheel drive off road motor bike. It has a 6 1/4 hp Kohler 4 stroke engine. This particular units' serial number indicates it is a 1966 model. It is published that 28 of these were produced for that year. Is in good original condition, we have owned it since the late 1990s. It was sold new by Steve's Arctic Cat in Center City MN. It only had one previous owner before me. The front and rear lights are original and working. The front wheel drives via a roller chain system.