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

https://wiki-mixer.win/index.php/Don%27t_Make_This_Silly_Mistake_With_Your_Mobility_Scooter_For_Sale

All-terrain mobility scooters include knobby tires, robust motors, and boosted ground clearance to deal with gravel courses, yard, and moderate off-road surfaces.