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

https://www.4shared.com/office/r-s8lbvMjq/pdf-10001-9563.html

All-terrain mobility scooters add knobby tires, robust motors, and enhanced ground clearance to deal with gravel courses, lawn, and moderate off-road surface areas.