When we get our license we test into a certain class 1, 2, or 3. What ever. Class of bike we use to test determines what we can ride. I think it's: 1=400cc 2=up to 600cc, and 3 would allow me to ride anything over 900. The course isn't too hard to get into nowadays, but it is a two day class a few hours from where I'm at (Yokota). But they're pretty strict about riding on base here, as far as safety, gear, and speed limits go. Now I've just got to figure out what I can import and what I can't.