On the Commercial 9.9, you can customize your settings for personalized results. At the touch of a button, adjust your stride length, incline, and resistance to target different muscle groups and burn more calories. You can also work out around the globe with elite personal trainers using iFIT® interactive workouts. Experience a natural stride with the 11kg, inertia-enhanced flywheel built with SMR™ Silent Magnetic Resistance, giving you a quieter, more seamless workout, while the AutoBreeze™ fan adapts its speed to match your workout intensity.