You should regularly check your helmet visor. Why should you replace it if it is scratched?

The selected combination is correct because both aspects address crucial safety concerns while riding. Firstly, visibility is essential, especially during nighttime riding. A scratched visor can reflect light in ways that dazzle the rider, leading to impaired vision and increasing the risk of accidents. Secondly, a scratched visor restricts a rider's overall field of vision, hindering their ability to see obstacles or other road users clearly. According to German traffic regulations, maintaining optimal visibility is vital for ensuring safety while riding. Therefore, it's important to replace scratched visors to comply with these regulations and ensure safe operation while on the road.