>>1002333they make all kinds. I saw one that replaces that little disc on the steering tube. That one was llike 150 bucks and used a pay-as-you-go phone card that doesn't activate until you tell it to. after that it's like some charge for every time it texts you to update you of the bike's location. it sounds totally worth it to me especially considering you don't have to activat it until you lose the bike. i'm sorry about your bike anon