The wheels of the vehicle are a highly important part of the vehicle, and are as important as the vehicle's engine. This is because the engine and the wheels rely on each other to ensure that the vehicle work. As without the engine, there will be no power, and without the wheels there will be no movement possible. There are four wheels in majority of the vehicles, and all four are required to be in shape to ensure that the vehicle will move. These wheels come in different sizes and types, as most vehicles feature a different size and type of vehicle. The size of the wheel depends entirely on the size of the vehicle, as smaller vehicles tend to come with smaller wheels, and the larger the vehicle the larger the wheels. These wheels carry the weight of the vehicle along with the weight of the passengers and driver inside the vehicle. A wrong size wheel can throw off the working and the balance of the vehicle entirely. These wheels are made using various materials, along with other components. The components used are based entirely the kind of wheel that is in question. The most common type of wheels seen are aluminium wheels, they are perfect for on road driving; and offer an added touch of beauty.