The Erzberg in Austria. For the past 16 years the Erzberg Rodeo been a Mecca for extreme enduro. Up to 35-thousand spectators follow the action on the former iron ore mine.For many fans this is the Woodstock of Motocross and the most exciting race weekend of the season. Two thousand motocross riders from 26 nations gathered for the event. But before the prestigious main race, riders first faced the challenge of the prologue. It’s a grueling test. Only the best 500 get to take part in the main race.