This is a bit of a double edged sword. Your right that you dont need a reservation but it's pretty common for train companies to restrict the maximum number of bikes per train. On services where you cant book you just have to hope that there arent many other cyclists so that there is room for you to get on.
Bicycle carriage is provided free of charge so the train companies get away with this shoddy arrangement.
You'll probably be fine - at worst you just have to wait for the next train.
This is a bit of a double edged sword. Your right that you dont need a reservation but it's pretty common for train companies to restrict the maximum number of bikes per train. On services where you cant book you just have to hope that there arent many other cyclists so that there is room for you to get on.
Bicycle carriage is provided free of charge so the train companies get away with this shoddy arrangement.
You'll probably be fine - at worst you just have to wait for the next train.