There is no such law concerning "lane splitting" in CA. You can get a ticket for unsafe driving/riding (or whatever the legal term for this is), but its up to the officer to decide what in unsafe.
BTW, I doubt CA lawmakers would create a law with air cooled motorcycles in mind. You might want to try using the "my motorcycle was overheating" excuse if you ever get pulled over.
BTW, I doubt CA lawmakers would create a law with air cooled motorcycles in mind. You might want to try using the "my motorcycle was overheating" excuse if you ever get pulled over.