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

https://www.scribd.com/document/1049560171/20-Mobility-Scooters-Websites-That-Are-Taking-The-Internet-By-Storm-227915

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