The proform performance 350i treadmill is a reliable machine providing straightforward and efficient low impact aerobic workouts made to help you boost up your fitness the treadmill has a 20 chp motor which speeds the belt up to 16kph 10mph and to let you spice things up a bit there are 10 levels of incline for comfy runs and reduced impact on the joints the 350i offers proshox cushioning and to make adjustments quick and easy it features quick speed and quick incline controls you can