2.1.1

Adaptive tricycles and quadricycles are off-road cycles with three or four wheels that improve balance. They have rugged suspension systems and can be pedaled by hand or foot. Some even have electric motors to help the rider. Adaptive tricycles and quadricycles are three- or four-wheeled cycles designed to improve balance, and they are designed for off-road use, typically having rugged suspension systems. These bicycles can be hand- or foot-pedaled, and more and more of them have electric motors to assist the rider.