The BBC slugged this stunt “insane” but although somewhat chancy it appears the rider had all his marbles, so to speak. The good part is no one can try it here because we don’t have any dams. This is in Slovenia where mountain biker Primoz Ravnik has clocked up 4.4 million hits on the video since it was posted earlier in September. He hurtled down a 60m (197 feet) high dam in Zirovnica on August 28, 2015. Mr Ravnik learned to ride a bike when he was two, and is now a cross-country and downhill biker who, it might be added, is looking for fame.