Cardio Club Self Powered Treadmill. There is no top speed and users are not subject to ramp up time. It was designed to make up for conventional treadmills shortcomings, most notably wear and friction. The rubberized slats are built like a tank, literally. With 112 ball bearings the belt glides, which results in years of life with very little maintenance and zero electrical consumption. There is no need to adjust and tension the belt, our design utilizes tracking rollers and a toothed pulley. The lack of a motor or electrical components mean they never need to be replaced.