Each workout chosen from expansive, on-demand library is led by an elite iFit coach who personalizes the workout to your needs through auto-adjusting technology - your treadmill's speed and incline will be digitally adjusted to mimic real-world terrain or match your workout's requirements. Powered by an industry-leading 2.5 CHP Smart-Response motor, your NordicTrack treadmill can support intense speed, endurance, and interval training. An 18 x 50 commercial tread belt offers a spacious platform for your exercise, and was specially engineered to provide a comfortable space for runners under 6 feet tall. Totally customize each workout with 10% OneTouch incline and 10 MPH OneTouch speed controls, and enjoy your folding treadmill?s reduced footprint when your workout is done thanks to an innovative SpaceSaver design. The CHP rating is measured in laboratory testing using a dynamometer, which measures the mechanical power of the motor. The CHP rating does not denote the operational horsepower of the treadmill in ordinary household use. In ordinary household use, the motor does not operate at the horsepower shown. 18" x 50" Commercial Tread Belt Providing a wide running surface, this commercial tread belt was designed for runners under 6 feet tall Auto-Adjusting Incline Control Take your treadmill up to a 10% incline grade for realistic hill training from the comfort of home With iFit, your trainer can digitally adjust your incline as you run to mimic real-world terrain or meet the recommended workout requirements - delivering a fully-optimized, hands-off experience every time 10 MPH OneTouch Speed Controls Run up to 10 MPH with the touch of a button. Footprint 57" x 33.5" x 66" Folded Product Footprint 62.5" x 33.5" x 34" Model #: NTL59619