What must you check when transporting bicycles on a rear-mounted support system?

When transporting bicycles on a rear-mounted support system, it is crucial to check three specific areas to comply with German traffic regulations.

First, ensure that the support system is appropriate for your vehicle as per the manufacturer's instructions. Using an incompatible system could lead to an accident or damage to your vehicle.

Second, it's essential to verify that both the support system and the bicycles are securely fastened. If not secured properly, the bicycles could fall off while driving, causing hazards for you and other road users.

Third, you must check that the support system does not obstruct or cover essential components such as the vehicle's lighting equipment or number plates. Obscured lights could prevent other drivers from seeing your signals, and covered number plates may lead to violations of registration laws.

Taking all these considerations into account is necessary to ensure safety on the road and compliance with traffic laws, ultimately protecting yourself, your cargo, and other road users.