When you enter Slovakia be careful. Car drivers are arrogant, there is lots of police patrols on the roads checking speed 90kmh on carriageway 130kmh on motorway. On the motorway usually black Audi or Passat. You must carry spare bulbs, first aid kit, warning triangle, high viz., bike owner certificate, insurance certificate. On the route (google one) there is several camp sites you can stay overnight. Or you can find B&B in small villages for about 10-15 Euro maybe less. If you have more questions feel free to ask.
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