A Chinese man has found a novel way of making his bike safe from thieves - he has thrown away the front wheel.
Li Qingyou, 24, from Shenzhen, in southern China's Guangdong Province, says he can ride his bike on just the back wheel.
He reckons that he can ride his one-wheeled bicycle for more than 30 miles at speeds of up to 20mph.
"I was curious to try, to see if I could ride with only one wheel - and after a month of practice, I mastered it," he said.
"I have never had my bike stolen since I started riding like this. I don't even lock it because no thief could ride my bike."