If you want to buy, I can sell it to you 😁

On a dry surface, it drives great, on tires from the description of the video. Of course, "great" with this motorcycle is speed around 70/80 km/h. It's too heavy to go faster - it's about braking time. Of course, muddy sand, mud, etc. requires much more careful driving because the worst thing is front wheel slip. Try carefully, start, brake, feel the bike and how it's holding up. Increase your speed over time. A little self-confidence helps to control the motorcycle freely ;) And remember, sometimes it's better to lay the bike down and jump away than to try to save it by force. Drive safely!