From DMV website:
California law prohibits California residents or businesses from importing and/or registering a new vehicle with less than 7,500 miles at the time of purchase unless it meets or is exempt from California emission standards. If you acquire a 49-State vehicle (manufactured for all states except California) from another state or country, you may not be able to register your vehicle in California.
Also do not bring the bike to be registered if it does not have the 7,500 miles on it or it will be flagged and you won't be able to bring it into Ca no matter the mileage...