What must you do when transporting bicycles on the roof of your car?

Transporting bicycles safely on the roof of your car is governed by specific safety regulations. The correct combination involves three essential practices:

1. Safely attaching holding devices and bicycles is crucial to prevent accidents or damage while driving. If the bicycles are not secured properly, they can detach and cause hazards for other road users.

2. Avoiding high speeds is important because increased velocity can amplify the risk of losing control of both the vehicle and the bicycles. High speeds could also lead to more severe consequences in case of an accident.

3. Regularly checking the fixing devices ensures that they remain secure throughout your journey. Over time, vibrations from driving can loosen attachments, making it essential to periodically verify their tightness.

Following these rules helps maintain safe driving conditions and complies with the road safety laws in Germany. Neglecting any of these aspects can result in penalties, accidents, or damage to property.