Alternatively, you could post a "want" ad on Craigslist, saying that you would like to buy a bike, something along the lines of a Mongoose Rebel.
Although, this would only work if the bike has definite characteristics that would make it recognizable in a photo.
**This can also be a lesson, anything that you own that you feel might get stolen should be marked. This includes bikes, ATVs, Dirt Bikes, Lawn Mowers, etc. carve or mark something (such as your phone number) in an out of the way place. Get pictures of you doing this, and pictures of the phone number on the item, as well as the item itself. That way if you are able to find who stole it, the police will be able to identify the item as yours, making it easier to reclaim it.**