The red bull is still in the lead group, but his tires are beginning to wear out. Hiroshi, who has been riding with the front group, has caught up with the red bull and is now in a better position to catch the bull. The two men continue to jockey for position, and Hiroshi notices that his tires have begun to wear. He realizes that he has been caught in the slipstream, which is a space between the rider and the vehicle.