There was a long stretch of gravel that ended with the steep part to the Besna Kobila and cp 2, I'm sure you remember the last part that made everyone walk but there was half a day of kind of easy ridable climbing on a rocky gravel road before that.
For some reason I thought that radio tower thing was in Bulgaria still... but the Bulgaria control was that UFO building. This is why I don't remember most of it... would you like a Dark & Stormy?
There was a long stretch of gravel that ended with the steep part to the Besna Kobila and cp 2, I'm sure you remember the last part that made everyone walk but there was half a day of kind of easy ridable climbing on a rocky gravel road before that.
https://www.transcontinental.cc/tcrno7-cp2-1
https://www.komoot.com/tour/61898185