Nice ride but a lot of potential organ donors doing things that can affect others adversely especially at weekends. End point worth the trip even though its not best suited to a touring bike all that well.
This is a must do ride. Ride from Northern Prague to Melnik where it starts to get interesting some great technical corners and fast open sections. The caves are an old V2 rocket site from WW2 dug out of sandstone, there is now a bikers a bar with food. You can ride up to the bar even sleep in the caves at the weekend when rock concerts are on.
It gets really busy at the weekends so expect to see lots of bikers on the road where it can turn into a racetrack. Stop at the Aquip petrol station near Duba where most of the bikers refill with fuel and coffee.
You have to do this ride!