Lightweight 2x2 Russian ATV motorcycle - video

[Rangi]

Or a Ubco.
https://www.ubcobikes.com/

[Frank S]

Or a Ubco.
https://www.ubcobikes.com/

Actually a bike with both wheels powered is a good argument for going electric.
The power train is totally contained within the hubs of the wheels. Front and rear wheels can be the same the advancement in battery designs are making leaps every few years.
I think the tire sizes could stand some optional improvements for the Ubco though. the 275x17 size seems a little lacking in width for serious off road riding if it were to be used as a mode of transportation for hunting small of medium game in the woods the trailer option would be a necessity but they didn't give specs of load or towing capacity. It stated a recharge in 6 to 8 hours so having a couple of spare batteries and a roll up or fold up solar panel could mean nearly unlimited use while camping. So maybe a big brother version might be a worthwhile venture. or even a quad