As any cyclist knows, having your bike stolen can be a bitter blow.
But the days of cycle thieves may be numbered if this new invention is anything to go by.
The Yerka Bike has an integrated locking system, essentially the frame is the lock itself, so if a thief breaks the lock, the bike is ruined.
With a host of other security features, its creators claim the cycle is unstealable.
See how it works in the video above.