The Cascade Air Bike Classic. Commercial quality, the new Cascade Classic and Unlimited Air Bike models are built to be the strongest and most durable air bikes ever made. In air bike technology, weight and tough construction matters – as users often engage in high intensity total body workouts in and out of the saddle. Comfortable and easy to use, both Cascade Air Bike models offer unlimited air resistance. 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. The Cascade Classic model has traditional handlebars while the Cascade Unlimited model is designed with multi-grip handlebars and pedals with cages.