A lightweight motorcycle is a type of motorbike that is designed to be light and easy to maneuver. A minibike is a small, lightweight motorcycle that is often used for recreational purposes. It typically has a low-powered engine and is designed for off-road use. A dirtbike is another type of lightweight motorcycle that is designed for off-road use. It typically has a higher-powered engine and is designed for more extreme terrain. Both minibikes and dirtbikes are popular choices for those looking for a lightweight motorcycle.