Riding BMX at 2,000ft under a HOT AIR BALLOON , Limits do not exist for BMX rider and Red Bull athlete Kriss Kyle who has achieved something seemingly impossible. With a skatepark suspended from one of the world’s largest hot-air balloons, Kriss Kyle floats over 2,000 feet above ground, showcasing an array of tricks suspended in mid-air for his latest pioneering BMX film. Internet Videos