The route classification on Komoot is not very helpful for tour planning. The trails are classified as S1, but are often more difficult. This throws the tour planning over the pile, because you end up traveling much longer. That's why I've tagged almost every trail I've driven - and there have been many.
Rabac and surroundings offer many opportunities for tours. But first: It is often not easy, but rough, because many infinite stones. And secondly: It goes up and down steeply, and many climbs are simply not possible.