Chaining two bikes together is a legitimate tactic, and riders have used it forever: two motorcycles locked frame-to-frame weigh 800+ pounds combined, can't be rolled, and are awkward to lift even for a crew with a van. It's how couples and riding buddies protect bikes when there's nothing solid to anchor to.
Do it right:
- Chain frame to frame — through the main frame or swingarm of both bikes, never just a wheel (wheels unbolt in minutes).
- Keep the chain tight and off the ground. Slack chain resting on concrete gives a thief a solid surface to attack with a hammer or bolt cutters.
- Use a real chain — hardened steel, ideally 13mm links or thicker, with a quality padlock.
- Add a disc lock to each bike so neither can be ridden even if the chain fails.
One honest caveat: two bikes locked together can still be lifted into a truck as a unit by a determined crew. If there's a fixed anchor — a post, ground anchor, or street furniture — chain to that instead, or in addition. And put a hidden tracker on at least one of the bikes; if the pair disappears together, one live location finds both.





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