Now, I'm not 100% sure on the classes with the New East series, I think they are same as the east coast, but in our East Coast series, we pretty much follow the layout of the classes for the AMA/ATVA EDT.
AMA wise, any class you see that has "production" in the listing of the class, that means only a quad produced & sold today can be used in that class.
For the most part, we have changed the classes in the AMA series & only class that is production is the top Pro class, so that leaves open a bunch of classes.
East Coast EDT, I'll need to go back & be sure, but you could run any age restricted class, providing your over that age & probably an A, B or C class. Now if your R was a big bore, you could run it in an Open class & probably still could even being stock if you wanted to, but thats up to you.
I'll say this much, if you was to be able to be at our East Coast event, I'll make sure your in a class or at least 3 classes if you want run that many. You'll not be turned away thats for sure, not with me there. Those days are over at any races I have anything to do with, 2 strokes been kicked to the side way to long & thats over.
Maybe I should re-state that, that is until they turn my toes up & throw dirt on me, until then I'll be 2 stroke all the way.
Neil