Friedberg 's main station is on the Main - Weser Railway .
Is the northern terminal of Frankfurt 's S - Bahn line S6 and also a stop for German Intercity trains and several regional railway lines .
Friedberg 's main station is on the Main - Weser Railway and is the northern terminal of Frankfurt 's S - Bahn line S6 and also a stop for German Intercity trains and several regional railway lines .