For users weighing over 400 pounds, we highly recommend choosing one of our heavy duty mobility scooters. USM carries both three- and four-wheeled mobility scooter models with weight capacities up to 500 pounds. Choose from heavy duty mobility scooters manufactured by industry pioneers like Pride Mobility and Golden Technologies, and benefit from our Low Price Guarantee to ensure that you get the best deal on the market. To find the heavy duty mobility scooter that will meet all of your needs and expectations, contact a scooter specialist via email or call our product experts now by dialing 1 (800) 794-9240.