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

When transporting bicycles on a rear-mounted support system, you must always ensure three things. First, the support system must be approved and suitable for your specific vehicle, following the manufacturer’s instructions. Second, both the system and the bicycles must be securely fastened so that nothing can come loose while driving. Third, you must check that neither the lighting equipment nor the number plate of your vehicle is covered by the support system or the bicycles, since both must remain clearly visible to other road users. Following these steps ensures your transport is safe and legal according to German traffic regulations.