Amazon.com: PerfiPro Airtag Bike Mount, Hidden Bike GPS Tracker Case for Apple Airtag, Airtag Bike Seatpost Reflector Mounts, Anti-Theft Airtag Holder for Bike, Electric Bicycle, Scooter (Yellow) : Electronics
Bike Tracker (GPS or Bluetooth): will it get your stolen bike back? | The Best Bike Lock
iTrakit: GPS bike tracker. Fits in frame. | Indiegogo