What happens if a helmet is too loose during a crash?

A helmet that is too loose poses a significant risk during a crash because it may not remain securely on the rider's head. In such scenarios, the helmet is likely to shift or come off entirely, which means it cannot provide the necessary protection for the head and brain that it is designed to offer in the event of an accident. The primary function of a helmet is to absorb impact energy and protect the skull, but if it doesn't fit properly, it cannot effectively fulfill this role.

When a helmet fits correctly, it should hug the head snugly without causing discomfort. This secure fit ensures that the helmet stays in place during a collision, allowing it to do its job. Conversely, if the helmet is loose, even minor movements of the head could result in the helmet being forced away from the head, severely compromising its protective capabilities.

The other choices do not accurately describe the consequences of a loose helmet in a crash. Therefore, understanding the importance of proper helmet fit is crucial for motorcyclists’ safety.