Why should you replace a scratched helmet visor?

Replacing a scratched helmet visor is crucial for two main reasons highlighted in your correct options: restricted vision and increased glare. A scratched visor can impair a rider's ability to see clearly, which is essential for safe navigation on the road. Additionally, scratches can cause light to refract, leading to increased glare from the sun or headlights, further compromising visibility.

In German traffic law, maintaining proper visibility is vital for ensuring safety while riding. A clear visor is necessary to avoid potential accidents, as any reduction in vision can lead to dangerous situations. Therefore, addressing all relevant factors—like the risk of increased glare and restricted vision—is essential for riders to remain safe and compliant with regulations. The third option regarding misting is also valid; often, scratches can disrupt the visor's anti-fog properties, contributing to visibility issues. All aspects of visor condition are thus important for ensuring maximum safety while riding.