The 'gravity bikers' risking death for thrills in Colombia

“Gravity biking” is a popular extreme sport in the United States, involving riding specially-adapted pushbikes down steep roads.

An even more extreme version has become popular among young men in poor neighbourhoods of MedellĂ­n, Colombia, who risk their lives on the mountain city’s vertiginous highways, usually without helmets or protective clothing.

Marlon has lost two friends to crashes and recently nearly died himself. He faces a dilemma: whether or not to continue following a passion he knows could kill him.

Video journalist: Megan Janetsky. Producers: Eleanor Layhe, Simon Maybin and Jorge Caraballo.

source: bbc.com