Good hairpins running up the hill to Viel Armand (A french war memorial cemetary on the top of a mountain), although there are about 3 hairpins which change to cobblestone surface rather oddly (could be very dangerous in the wet). The descent can be a bit tricky because of paint on road and bumps so be careful
It can be difficult to pass if you get stuck behind someone on this stretch, so avoid during busy periods. Otherwise excellent, just like a race track i.e. smooth, flowing and level with a good surface.
The road first rises up giving great views and lots of hairpins, then drops over a peak and has a faster section of bends on the other side. Popular with bikers and drivers.
Route from Kaiserslautern approximately 240 Kilometres