Evo, Evo and....Evo. The class the bike runs in is decided by the newest major component. In this case it'd be the '81 engine. If it has an '82 engine, I think the bike'd have to go into pre '85 as the engine came from a linkaged bike. Fussy eh? If you had the original '79 400/440 engine in it you'd still have to run Evo as I think the old pre '80 class in Victoria is gone (or am I mistaken?)
I'd love to have a ride on the bike to see if the sweetest Maico frame of them all is improved by the later suspension and more power. It'd be cool to do a comparo between the 490 Frankenbike, '81 490 and '82 490 (and perhaps the '83 500) with a rider who is good enough to get the best from the bikes and intelligent enough to put their thoughts on the differences into words.
