The "Gravity Bikers" of Colombia

[Cycleops]

This is a craze among kids from poor neighbourhoods in Colombia who use modified bicycles to speed down hills for thrills.
BBC News
https://www.bbc.co.uk/news/world-latin-america-49450515

 

[TheDoctor]

Pfffft. Go down Col de Mort d'Imbert on a Brompton at 50mph and then get back to me.

 

[Chris S]

This is a craze among kids from poor neighbourhoods in Colombia who use modified bicycles to speed down hills for thrills.
BBC News
https://www.bbc.co.uk/news/world-latin-america-49450515

Children in the UK did that in the 1970s. I think it spawned the Raleigh Bomber.