https://www.amazon.com/Gorilla-Automotive-9100-Motorcycle-Paging/dp/B00J3QM4OC

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Use that with a disc lock brake and you'll be good. Most theft is looking for easy targets. Not being able to move it and having an alarm go off when they sit on it will get them to run.

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Also you can look at the CycleShell for home. It's like a mini garage. Of course they can cut into it if they really wanted to but if you have motion sensor lights at home to shine on it, that would work too.