On Regional Trains need to go into the special bicycle compartment, also on S-Bahn. On Subways, Buses, and Trams you might not be allowed to take a bicycle at

On Regional Trains need to go into the special bicycle compartment, also on S-Bahn. On Subways, Buses, and Trams you might not be allowed to take a bicycle at all depending on the city’s regulations. Regardless of that, you will always need to buy a special bicycle ticket. In fact same goes for dogs. So this 9€ ticket will be really useless for dog owners since they need to pay normal ticket prices for every fare for the dog.