This hard enduro race was held in Sibiu Romania, 2-6 July 2013. 
The first video is onboard with Ktm factory rider Jonny Walker, 2nd place finisher this year. 

Red Bull Romaniacs Prologue with Jonny Walker

Hard Enduro in Romania - Red Bull Romaniacs 2013 - Event Recap

History of Red Bull Romaniacs - Romania's Toughest Enduro Race