Where should a passenger on a motorcycle with sidecar sit to reduce the risk of tipping over on bends?

When riding a motorcycle with a sidecar, the passenger should sit in the sidecar to help maintain balance, especially when turning. The weight of the passenger in the sidecar counteracts the tendency of the motorcycle to tip over on bends. If the passenger were on the motorcycle instead, it would be more difficult to balance, increasing the risk of tipping. Therefore, placing the passenger in the sidecar is a key safety measure to reduce that risk according to German traffic rules.