Motorcycle ferrings are designed to direct airflow upward and sideways. By reaching your hand outward while riding you can feel the quiet envelope that surrounds the rider, it's like sticking your hand out the window of a moving vehicle. With the bike traveling at 65 mph the airflow speeds up to about 80mph as it flows overhead, like the increase in velocity as air flows over an airplane wing. the camera, being mounted on top of my helmet, is directly in this airflow. The advantage is that I can photograph forward and sideways movements of the other bikes as well as sideline points of interest, simply by glancing at them. The movie "easy rider" had some nice examples of artistic formation riding as well as excellent lens flair photography.