From adjustable cushioning to the easy-to-read display, the NordicTrack C80i treadmill offers customized convenience for your workout. Choose your comfort – whether you want full deck cushioning for superior joint protection or a solid, stable running surface that mimics the road. Take your speed up to 18 km/h and your incline up to 10% with the touch of a button to increase intensity and calorie burn. Get the best of both worlds from adjustable FlexSelect Cushioning. One half turn delivers superior impact reduction, with cushioning isolators on each side of the deck, to protect your knees and ankles. Another half turn offers a firm, stable surface that feels like the road to mimic an outdoor run.