Motorcycle **drivers and passengers**, whether with or without a sidecar, are required to wear a safety helmet. This is because motorcycles are more fragile and less stable vehicles than others, which increases the risk of injury in the event of an accident.

- The helmet is a crucial element of **passive safety**. It protects the head from impacts against the ground, other vehicles, or road elements. Additionally, it distributes the force of the impact to prevent serious injuries and protects the face and head from burns when sliding on the ground.

- Head injuries are the main cause of death in two-wheeled vehicle accidents. Wearing a helmet can save lives, as three out of ten people who have an accident on these vehicles survive thanks to it.

For these reasons, both drivers and passengers must wear the helmet properly fastened and adjusted to ensure its effectiveness.