The Cascade Unlimited model offers infinite air resistance with a multi-grip handlebar design, especially versatile for upper body workouts both sitting and standing. Like the Cascade Classic model, the Unlimited has the same tough construction and durable features and it is ideal for both users needing low resistance exercise as well as offering a high intensity heart pumping workout for more conditioned athletes. Like with all air bikes, the individual controls the intensity as they pedal, push, and pull to meet their own fitness objectives. The large foot pegs also make it simple when users only want a great upper body workout.