The frame already has a serial number on it and in most places you can file your bike's S/N with the local police department so that if you file a report and th

The frame already has a serial number on it and in most places you can file your bike's S/N with the local police department so that if you file a report and they find it they can look it up and reach out to you. This part is already done and works pretty well for recovery (not for reducing theft). For e-bikes in particular the batteries have a lock, and the motor has DRMed firmware on most big name bikes. It hasn't helped theft, it's just annoying for the user. In general the thief can just grab the entire bike and throw it in a truck, then once they're offsite they have as much time as they want to rewrite the firmware or pick the lock so this doesn't really help.