If not, if you have key code, call a local lock and key outfit and ask, they should be able to make one (three actually).
The key code is on the original key, I'm not aware of anywhere on the bike that has the code written down. Only likely way is to take a lock to a good lock smith and have him make one.
As for the dealer, I know with the registration on my CAR I can get a new one cut at the dealer. Maybe they can do the same for a MC, or at least get you the code, then you can get one from the lock smith. My local smith is able to make from the key code. $16 for one.