The presence of a cyclepath does not necessarily imply that cycling on the parallel road is not allowed. Thus, "bicylce=no" should only be used if cycling is explicity not allowed = if sign 254 "Verbot für Radfahrer" is present. https://de.wikipedia.org/wiki/Datei:Zeichen_254_-_Verbot_f%C3%BCr_Radfahrer,_StVO_1992.svg