Originally Posted by
xilios
For a route I would recommend you sail to Holland where you can get on the Rhine all the way to Lake Konstanz then follow the Danube to the Black Sea.
+100 You can get the maps from Esterbauer Bikeline. The books themselves are in German, but the maps are indispensable.
Your bike will do the job fine. How wide are the tires? How old are you, and when are you going?