If you're ever near Corona, California on a Wednesday night, you must check out the sportbike scene at Backwoods Barbecue, on Green River Road just South of the 91 freeway.
Backwoods Bike Night is one of the larger weekly sportbike gatherings in this neck of the woods. They have an area rope off (kinda) for stunters to perform, and there's always a good show. Vendors often show up, you can buy T-shirts and such, and also have your bike dyno'd on a portable dyno.
The food at Backwoods Barbecue is outstanding, and reasonably priced.
A good time all around...if you're into sportbikes....as we are.