The B498 through the Oker-Tal is a beautiful & twisty piece of bikers heaven. In Harz in general you will find all sorts of twists and turns from the tighest sharpest-possible hairpins to very fast open sweepers. When you go there you will find out that hundreds - if not thousands... - of bikers have discovered the same thing. Great place! Ride safely - but have fun...! :o)
Gnimmelf