ElliptiGO Arc 8 - The World's First Outdoor Elliptical Bike Comfortable: Natural "stand up" riding position reduces stress on your neck, back and eliminates seat pain Fun to ride: Outdoor elliptical bike gives the feeling of "Running on air" Great workout: Burns 33% more calories than a bike; Gives a better workout in less time Cross trainer exercise used by everyone from Olympic athletes to recreational riders Lightest and most affordable elliptical bike in the market