Watch Mountain Bikers Fly and Crash at the World's Hardest Downhill Race

Red Bull Hardline, dubbed the world's most difficult downhill trail, returned for its second year to Dinas Mawddy in North Wales on Sept 12-13. Course designer Dan Atherton spent three months turning the rocky hillside into a track that would push the boundaries of downhill racing. 

"Everyone's initial reaction is 'is this even possible?'" said Gee Atherton, former UCI World Cup and two-time world champion. "There's no other course that challenges riders like this." 

The run was bigger and more technical than the previous year with huge BMX style dirt jumps, technical downhill sections and the giant manmade road gap featured the previous year. Fifteen riders started, but only eight made it to the finals. 

Gee Atherton had the fastest qualifying time, but ended with a flat tire during the race for the second year in a row. Dan Atherton crashed and broke his shoulder while testing his own course and didn't get to race. Ruaridh Cunningham, whose goal for the weekend was just to put a run down and go home safe, took home the title.