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

https://www.4shared.com/office/8hBbrX3Nge/pdf-2591-18685.html

All-terrain mobility scooters include knobby tires, robust motors, and boosted ground clearance to take on gravel courses, turf, and mild off-road surface areas.