Hi
Because Slovenia is so small and if you plan 14 days trip, you will need to continue to one of our neighbours. One of them is Croatia.
You can enter Cro after passing Kocevje. It is the old road, not much traffic. Made for bikers.
You can enter it city of Bregana, near Zagreb. In front of you is boring motorway, or you can make a turn in Novo mesto and go to Metlika. You will love the road.
When you are in Cro visit Plitvicka jezera. Round tour will take you almost a whole day. From there you can continue to Dubrovnik. If you will trevel in July or Aug there will be a lot of cars, trucks and tired CZ guys. Be carefull.
You have to major roads to Dubrovnik. One is inland and other is Jadranska magistrala. Both are crowded. In Sept is much better. If you will take Jadranska magistral stop in park of Krka waterfalls, Zadar, Trogir, Split, Makarska. You will find a beatufull beaches. Biker have traditional 1. May meeting in Dubrovnik. A lot of Slo bikers go on that meeting. From there they continue to Calabria, or just enjoy the sun in Dubrovnik.
Montenegro with beautifull sand beaches is not so far away.
Prices in aparments are between 10-15€ for one night one person. camps aren't much cheaper. don't book your apartment via intertnet if you plan to stay more than 3 days. you will find it cheaper when you get there.
Vlado