I just heard that the 450 Supercross class will be open class. Meaning riders may choose to ride a 250F, 125,250 2-Stroke, whatever. They still can't ride a 250F bored out or something. But any bike that can legally be ridden in the lites class can also be ridden in this open class. That's great because lites riders can race the opposite coast making for some interesting matchups.