The **helmet** is a crucial element of **passive safety** for drivers of two-wheeled vehicles. Its main function is to **protect the head** in the event of an accident, distributing the impact force to prevent serious injuries.

- **Impact and damage**: If a helmet suffers an impact, it may have lost its protective capacity, even if there are no visible damages. Therefore, it is essential to **replace it** after any blow that may have damaged it. This ensures that the helmet continues to perform its protective function effectively.

- **Importance of the helmet**: 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 suffer an accident survive thanks to it.

Therefore, it is essential to replace the helmet if it has suffered an impact, to ensure maximum safety on the road.