Rugged Adventure Racing Through New Zealand Wilderness – Red Bull Defiance Red Bull bike┬ávideos – Over a two day, grueling 142km course, 132 athletes set out for what might be the gnarliest adventure race in the world – Red Bull Defiance. The competition brings a whole new meaning to the term endurance racing, with a course that boasts 142km of gruelling terrain to traverse over 2 days, coupled with freezing temperatures, snow, rain and wind. 4K