Since motorcycles can be lighter than cars, they can accelerate more quickly. But it also makes them not as safe as cars, because they do not have a protecting chassis around them like cars. Very often motorcycle riders are injured heavily in accidents. A motorcycle rider can wear a helmet and clothing that has armor. This special clothing may reduce the rider's injuries in an accident. Motorcycles also do not protect riders against wind and rain. That makes it difficult to drive in winter or during bad weather.