The Freemotion Treadmill is a desired piece of cardio equipment because of its one-of-a-kind rear-drive motor system and soft deck cushioning, which allows for less strain on the knees and lower back. Additionally, the Freemtion Treadmill is also widely desired because of its wide running space, which requires minimal (if any) lubrication over several years, and the 5.0 HP high-torque AC speed control motor.