I have found a cheap train fare that travels on a specifc time and date from Rothenburg ob de Tauber to Oberusel. However, I need to store my luggage at Frankfurt (Main) hbf before continuing to Oberusel and the connection at Frankfurt (Main) hbf is only a few minutes. bahn.com only allows adjusting the departure time from the Frankfurt Sudbahnhof station. Does anyone know if Sudbahnhof station has luggage storage facility? Or If I get off Frankfurt (Main) hbf and get on a later train (later than the time on the ticket) to Oberusel, will the ticket be valid since S5 trains run frequently?