All-terrain mobility scooters add knobby tires, robust motors, and enhanced ground clearance to take on gravel courses

https://charlie-wiki.win/index.php/Buy_Mobility_Scooter:_11_Thing_You%27re_Not_Doing

All-terrain mobility scooters add knobby tires, robust motors, and improved ground clearance to take on gravel courses, lawn, and moderate off-road surfaces.