Dont you think that they should come out with a 'Big Bore' class in motocross racing? something like 450-800cc limit??? then we could get predator on raptor motocross action!, pluss the introduction of more racing oriented big bore machines such as maybe a YFZ 700???

 

There are already open classes if that's what you're asking. They're not excluded from racing just because of their size, they're just excluded from certain classes.

Raptors, Predators, Vforce 700's, DS's have the ability to run in any of the 9 following classes in the Nationals:
Open Pro-Am
Open A
Open B
Open C
16-24
Plus 25
Vet 30+
Senior 40+
Women

 

There's Raptors racing all over Southern California against Preds, Z400's KFX 400's Ds's YFZ's and so on. As said before you enter in the open class.