Bicycles on the metro:
Bicycles on buses:
Bicycles on public transport in general:
Public buses are always quite crowded - a lot of bikes taking up space are not popular.
If trains or busses are too crowded, you are not allowed to take them with, so it can not be guaranteed.
Main Airport in Cologne:
Konrad Adenauer Cologne/Bonn - CGN
Cycling distance from airport to city centre:
Cycling profile between airport and city centre:
Cycling path between airport and city centre:
Bike paths some of the route