You can reach Route 66 via the Schnepfenwald Trail. In the upper area, the trail runs over a hiking trail. After a short stretch on the forest road, there is the second, newly built section with many bends.
The first part is a wider, classic root trail that is easy to ride with good cushioning.
Then there is a short connecting piece on a forest road and then you drive over the second part, a flowing trail with some "built-in" stones to the intermediate destination at the Almdorf at the Schnepfn Alm.