I don't, but I just got hooked up with some serious riders out of Freiburg, and am going riding with them tomorrow. So I can update you then. but I went to Lorrach last week, and saw a very serious mtn bike shop that I did not have time to stop in at.
Send me a PM, if you wanna go ride. I potentially have an extra bike if we we hit up some bikeparks. And bikeparks will def rent bikes