To outsiders, urban dirt biking can seem a menace; for those who partake it's a way of life. The crazy stunts these daredevils pull off across London's industrial estates is a form of self-expression. Be it on two wheels or four, dirt biking is what these youngsters live for.
Photographer Spencer Murphy captures a subculture that's often hidden from view, but is growing in popularity. Murphy's pictures are accompanied by quotes that make clear many of the riders know the risks that come with the territory and are willing to live with the consequences.
See a selection of Murphy's photos below, all taken from his latest collection Urban Dirt Bikers published by Hoxton Mini Press.
