If it's a dirt bike, you can't register it for road use anyway, unless it has a valid Oklahoma title for road use. If you don't have a valid Oklahoma title for road use, you won't be able to get a CA title for it.
Please be more specific and I can give you more information.
I have a brand new BBR Super Pro frame I am planning on throwing this purchased bike onto. This frame has its own serial numbers right? Does the Ca DMV use the numbers off of the motor or the frame? In CA the bike has to be registered for off road use. Will I be able to do it or not? If not, does that mean people in CA cannot legally own a bike from out of state? Sorry, I just don't understand the process. Thanks for your help.