4.0 CHP MOTOR Train safer, longer, and quieter. Built with a bigger motor case for less vibration and internal cooling fans for less heat, this 4.0 continuous horsepower DurX Commercial Pro motor delivers lasting power that's smooth and even. Every NordicTrack motor features high-grade insulation and a built-in grounding brush to protect the motor and make it run longer. We're so confident in its performance, we've backed it with a lifetime warranty. RUNNERS FLEX CUSHIONING You're in control with Runners Flex adjustable deck cushioning. Turn it on for full-length suspension that reduces impact on your joints. Turn it off for a deck that simulates the road. 0 - 15% INCLINE With the touch of a button, quickly adjust your incline up to 15 percent to change your workout intensity and add variety to your training. 22" X 60" TREAD BELT This two-ply belt is specifically designed to reduce noise and friction for a quieter workout and longer lasting product. It's stretch resistant and engineered to stay centered on the deck. The belt material incorporates a proprietary lubricant that increases the performance and longevity of the drive system. SPACESAVER DESIGN Innovative SpaceSaver technology with EasyLift Assist telescoping shock helps you lift and fold the deck up and out of the way for cleaning and convenient storage. HEART RATE MONITOR Stay in your target heart rate zone for your goals. Dual CardioGrip heart rate monitor sensors are built into both handlebars for a quick, accurate reading. 0 — 12 MPH SPEED Walk, jog or run — the Commercial 2450 treadmill accommodates every workout with speeds up to 12 mph. Adjust your speed at the touch of a button. 40 WORKOUT APPS Get the training you want with built-in workouts designed by a certified personal trainer to help you reach your fitness goals. Choose from calorie, heart rate control, incline and speed workout programs. WEIGHT CAPACITY 300 lbs.