I've started gathering stuff for for ultra lightweight bike. I know your going to be doing a 250 some day and I think I'm going to head in the other direction. I have a very cool rolling chassis and hopefully this thing will weigh between 185 and 190. To be competive with an MT, its probably going to need atleast 25-27 horspower. The class is design for 200cc bikes but I think I'll need a little more cc to get the horspower I want. Is there more info on that class in the new rule book. Has anyone received a new rule book?