Most bikes can lock the steering mechanism and that’s the basic antitheft device. An add on device/service would be lojack. There’s 2 kinds, basic and early warning. Basic is just when you notice your bike missing and you report it. Early warning is where the bike is moved without the transmitter in the vicinity and you get email, text, phoned about the move which you can report. The recovery time with lojack’s supposed to be really fast. But it is $$$. The basic lists here for 795.00 USD while the early warning lists @ 1295.00 USD. And for your garage/driveway you can get a chain and lock and fasten it around the tires to something that isn’t going to move. Those are some of the ways I can think of. Although, there’s nothing that will prevent someone from taking your bike apart for parts though (spark plugs for instance).
If there’s anything more important than my ego
around, I want it caught and shot now…