If you want a non-motorized treadmill but also are a 7 foot NBA star and need a HUGE running surface, then the Curve XL is for you. You?ll need to be a NBA star with the nearly $10k price tag.
Huge belt surface with no motor. You would think that you wouldn?t be able to exercise on it and you would be wrong. Easy to use and almost impossible to wear out. One of the best options if you have a herd of cattle that you need to run on a regular basis.