If you go to
http://www.osl-racing.de and look at "events and meetings" you will see "Bitburg Race Days". All of the times and info are in there. Just under the Bitburg Race Days is "Tech Requirements" and that will tell you if you need a helmet. As for directions there is another post on here in this same section asking the same thing. Just go there and read the info. Hope this helps and hope to see you there. Peace