Embarrassing when after 120 km to make your legs so that you have to get down on the mountain and a group of e-bike seniors passes by, smirking: D.

That doesn't reduce the performance :-) The start and end point are practically right next to my front door, so I will go to the tour soon.

Along the Neckar to Zwingenberg, there is always gravel in between. If you take it easy there, the sections are also easy to ride on with a racing bike. And definitely more beautiful than the main road on the other bank of the Neckar.