The team at We Love Cycling decided to take a bait bike along with a camera crew to Amsterdam, Rome and Prague to find out which city is the worst for bike thieves.
They timed how long it took for a bait bike, which has been left unlocked, to be stolen in each of the cities, with a surprise for the thieves when they try and get away with it.
According to their video, somewhere in Europe, a bike is stolen every five minutes. In Amsterdam, it takes 22 minutes for the bike to be stolen with Rome in second place where it takes over an hour for the bike to be robbed.
They will be posting more about bike robbery over the next month, and you can read about it here: