- If there's an open-air bike market at 7th and Market, it seems like you could use some of the same strategies that have been used to shut down open-air drug markets.
- Police in the greater Vancouver area have had a lot of success with bait cars, but I'm not aware of bait bikes being used more than experimentally (cf. tocatchabiketheif.com)
- If one could devise a concentrated enforcement strategy, one might not need to "take six guys off a murder" for very long. Basically the idea would be to tip a high-crime-low-probability-of-punishment equilibrium and into a low-crime-high-probability-of-punishment equilibrium that should presumably remain equally stable. One approach would be to target a geographic area and communicate (and follow through on) a threat to throw the book at anyone caught stealing a bike.
(pretty much all of these are stolen from the book When Brute Force Fails).