The Curve Runner treadmill is a unique type of machine that differs from other treadmills in a few ways. First, it has a curved or elliptical running surface, as opposed to the traditional rectangular running deck on other treadmills. This curved surface is said to be more natural and comfortable for runners, as it simulates the running motion you would experience outdoors. In addition, the Curve Runner treadmill has a higher max speed than most other treadmills- 22 mph! It’s also one of the quietest treadmills available, so you can run without disturbing others in your home.