"Two-wheeled" refers to vehicles that are designed to operate on two wheels. Common examples include bicycles and motorcycles. These vehicles are typically powered by human effort, as in the case of bicycles, or by engines, as seen with motorcycles. The two-wheeled design allows for greater maneuverability and can be more efficient in navigating through traffic. Two-wheeled vehicles are popular for various reasons, including their ability to provide a sense of freedom and adventure. They are often used for commuting, recreation, and sport. Additionally, bicycles and motorcycles can be more environmentally friendly compared to cars, as they generally consume less fuel and produce fewer emissions.