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

https://www.4shared.com/office/GbK1s1kOjq/pdf-50577-52820.html

All-terrain mobility scooters include knobby tires, robust motors, and enhanced ground clearance to deal with gravel paths, lawn, and mild off-road surfaces.