Chances are that if you do a lot of bike commuting, you’ve had a cycle or two (or three) stolen. Three engineering students in Chile got sick of replacing their own stolen bikes, so they decided to do something about it. The result is the Yerka Project: A bike that the inventors say is impossible to steal. Good news for bike riders, bad news for thieves.

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According to the teaser video for the bike, the prototype is up and running and shows the frame of the bike unlatching so that, along with the seat post, the bike frame itself can close around a stationary object. Basically, the frame of the bike itself becomes the lock. The only way to get it free is to break the frame, rendering it useless and, presumably, not worth stealing.

Related: Bike Lift&Carry Makes Lugging Your Bicycle Upstairs as Easy as Carrying a Shoulderbag

Of course, the tires and saddle can still be stolen, so it isn’t the perfect solution. But if you live in an area where stolen bikes are a constant problem, it’s definitely cheaper to replace a tire or two than an entire bike – and you don’t have to worry about forgetting or lugging that heavy U-lock around.

Via Huh.

Images via Yerka Project