Quote Originally Posted by papaver View Post
they can also buy stolen goods... they don't have to be the thieves themselves.
If one knowingly purchases stolen goods, he is a thief himself.

Bikes are easily stolen, they are stored in garages that are left open or are easy to get in and get out. They wind up in a pawn shop or craigslist (most often craigslist, a good pawn shop will run the serial number).
Thieves (except stupid kids, who are, by definition, stupid) don't ride the bikes they steal. They pull up, throw them in the back of the car, and drive away. THey sell them as quickly as possible and want to get as much money for them as possible, and seem as legit as possible. Now, stupid kids may take one on dare or impulse and try to ride off on it....