PRECOR EFX 5.21si Elliptical Fitness Crosstrainer, Looks and performs like new, Benefits exclusive to EFX 5.21si model, Reverse Motion "backpedaling", Unique EFX range on motion and no impact stride, CrossRamp Variation with 14 settings ensures variety of muscle use, Fluid No Impact Stride. Includes extra feature with "POLAR Heart Rate Monitor" so you can adjust your cardio to maximize your workout. Located in Reno, Asking $500.00 or Best Offer. Call C# .