4-Wheel Mobility Scooter Consider a 4-wheel model If you're looking for a model with a longer range and the ability to maneuver different terrains outdoors. They provide more stability and an increased incline rating than 3-wheel models, but have a wider turning radius and may have a lower top speed. https://mobility-scooters-cheap01088.bloggosite.com/36369099/what-is-the-reason-comfortable-mobility-scooters-is-right-for-you