NO probs.
What CMX is trying to avoid is people entering a single bike in 10 classes and turning it into period-era disarster
i got no issue with a genuine pre 70 bike also runing in pre 75, that way you also pick up the age class rides as well
400 Needs to be in those original frames too, not the motor fitted into a later one
already had one peanut try to enter a pre 75 bike in pre 70, evo, pre 85 and pre 78. i have asked him to go away, read the classes and think about it. Some classes are a certain no, others might come down to 18.4, 18.5 in the supps to sort that out.
there has got to be a point where its just stupid, and stroking there own ego to try and ride a bike out of era and it does nothing for the integrety of the event. As a spectator id feel jipped for sure.