Make sure this fits by entering your model number. CURVE-CRANK TECHNOLOGY: The curved crank applies constant tension to the X and Y axes, delivering a dead-zone-free rotation as you step. With a smooth operation and efficient motion, you can get the most out of your cardio workout equipment for home workouts. RESISTANCE TRAINING MACHINE: The ergonomic crank allows you to easily and safely adjust the resistance level while still running for a full indoor HIIT workout. It features an LCD screen that tracks and displays calories burned, time, speed, and distance.