Precor AMT100i Experience Series Adaptive Motion Trainer (2009 Model) Unique commercial-quality cardio and muscle toning trainer allows you to adapt to your movement on the fly Contra lateral arm movement for natural motion reflecting the way you naturally move 0 to 27-Inch stride length, 4 programs including fat burner, heart rate control, interval and manual Hand held heart rate monitoring with compatibility for wireless monitors 350-Pound maximum user weight, 7-year warranty on frame, 2 years parts, 1 year labor