The Nordic Track E4.1 comes with a 14kg (31lbs) flywheel ensuring silky smooth operation & offers an 18 (45cm) stride length. It features 20 levels of electronically controlled SMR Silent Magnetic Resistance for great workout versatility & has a clear LCD display providing feedback on the crucial workout data. The E4.1 utilises a great selection of 17 challenging programmes to keep you motivated & is compatible with the i Fit SD Card Technology enabling you to load many more result-specific training options to the elliptical. This finest top quality machine is equipped with the Intermix Acoustics 2.0 sound system to let you listen to the favourite music while exercising.