Avoid consuming copious amounts of weed in Holland before you go to Germany.
The German cops aren’t too keen on it apparently.
Stick it up your seat tube…. 😉
As MSP says many cycle paths are not asphalted. Those that are are not always a smooth surface with tree roots underneath.
I rode from London to Munich in 2003 with an MTB and BOB trailer and from Bamberg to Rotterdam along the Main and Rhein rivers with my fixie (was walking like John Wayne by the end of it).
Some drivers are dickheads like anywhere else and you may encounter a self appointed German policeman….. Some powerless **** who takes it upon himself to enforce the laws. Ignore them.
Friend of mine was recently fined for riding no-handed along a cycle path. Another was fined for not having lights bit reflectors despite it being 2 in the afternoon.
By law you do not need a dynamo, but your lights, if battery powered, must have an indicator that the battery is getting low.