From Rome we headed towards the coast through the suburbs and then into the countryside. This section was a bit grim and partly industrial. There are pockets of abandoned factories and petrol stations. I didn't see it the first time but my son pointed out the scantily clad girls in the abandoned petrol stations offering alternative services. There is a level of openness and 'flexibility' to laws in Italy I hadn't seen before despite the various types and numbers of police around. If it works ...
As we had left late, and got lost we completed this section by jumping onto the train for a couple of stops to Latina. Trains are new, fast and cheap. Information tends to be in Italian and English which helps. Got to Latina rather than the coast as the stations can be quite far from the towns they are named after.
After being in Rome, the stay in a simple town with local families enjoying an evening was a great way to recover from the day's journey. Everyone seems to know everyone else but make you feel at ease.
Just adding a bit about trains. Generally there is no ticket office but there’ll be ticket machines which can be switched to English. There may be a €3.50 charge for the bike on some trains. Carriages where there are bike racks are marked so watch out for them. Doors may be controlled by the train driver so keep an eye out if the door appears locked.
Using the Trenitalia app is best as you get e-tickets and you can search for the trains which accept assembled bikes, usually Regional or Inter-City.