local tracks have there OWN rules . if thats what she said then thats what will hap'n you can run the open 450 class . however in a ranked event like a.m.a you will not be able to race that bike in any class at all . i would stick to your local track and run 450 open , braaaaaaaaaaap kawi 4 life 13itches ,, The 450 beginner class will only be beginners maybe 20 rider's at the most . 450 open will be beginners ,novice's intermediate . and expert class all mixed up . open classes can run as many bike's that enter could be 40 riders in one race (ive seen it hap'n) so pick your gate early while there's one still there or youll have to start behind a full line of riders blasten the hell out of you with there roost . braaaap on show em how its supposed to be done