The Proform 500 ZLE elliptical cross trainer has a rear folding design that offers you maximum room when the machine is not in use. This superb cross trainer has an adjustable stride length of 13, 15 or 18 to ensure you get the most comfortable workout possible. In addition, 12 levels of silent magnetic Digital Quiet Tech resistance, a 6kg (13.2 lbs) flywheel & 16 pre-set programmes combine to help you reach you fitness goals fast. The Proform 500 ZLE is i Fit SD Card compatible.