It all started in 2019, when Bjartmar Leósson started to see a rise in bike theft in Reykjavík. The bus driver and self-confessed "bike nerd" decided to start tracking them down and returning them to their rightful owners. Four years and, he estimates, hundreds of salvaged bikes later, the 44-year-old has developed a reputation in the Icelandic capital among cyclists and potential bike thieves. Known as the Reykjavík "bike whisperer", people across his home city turn to him for help to find their missing bicycles, tools and even cars. Often, he says, bike thieves hand over bikes without being asked and some former bike thieves have started to help him. Now when somebody loses their bike it can take as little as 48 hours to track it down on his Facebook page, Hjóladót ofl. tapað fundið eða stolið (Bicycle stuff etc lost, found or stolen), updated every few hours with missing and found items and which has more than 14,500 members. "It's not only me," he says. "Many times someone sees a bike hidden in a bush, takes a picture and then someone else comments 'hey that's my bike'. So everyone's looking out." Now when people's bikes get stolen, he says, the police direct them to his Facebook page. When there is a finder's fee he gives it to people living in [a homeless] shelter. Now when I see these guys on a stolen bike, I just talk to them very peacefully and calmly. The other day I talked to one of these guys and didn't even mention the bike, I just basically said: tell me your story," he says. At the end of the conversation, the man handed him the bike.