Bluetooth LE and motion sensors are actually brilliant, but I think we&#x27;re treating this too much as an individual problem when we can eliminate bike theft in the first place and not worry about installing trackers.<p>I&#x27;ve always thought about doing stings from the other direction: with bait bikes. For a bait bike, you just need a bike and a GPS tracker with a battery life of a week or so (a poorly-locked bike will be stolen in a matter of days). The GPS tracker is inserted in the seat tube, and if you glue&#x2F;oxidize the seat in the seat tube, the thief can&#x27;t remove the seat to check even if they are smart enough to check for a tracker. You can even add security cameras where you set up the bait bike (outside your apartment or home is a great place) to get additional information. The GPS tracker then gives you a location of either where the thief lives or where they store their stolen property, which lets you bust them pretty easily.<p>Even in a bicycle-friendly town with 100,000 in population (ala Berkeley), I can&#x27;t imagine that there are more than a few hundred bike thieves. It would take only a dozen individuals doing bait bikes to bring down bike theft drastically. Combine that with &quot;Bike Batman&quot; style vigilantism identifying stolen bikes on the used market, and I think it&#x27;s possible to reduce bike theft to near zero in a local area.