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The Nautilus Lower Back Machine
Retrofit The original Lower Back machine requires a foot pedestal made only by SuperSlow® Systems. Although this pedestal greatly improves the machine and is the only part supplied in our retrofit package, a proper retrofit must also include a bushings-for-bearings replacement in the movement arm as well as in the gear reduction pulley. The gear reduction pulley is remedied merely by the use of open bearings; however, the movement arm additionally requires a new shaft that is hardened to Case-60. Please phone us and we can advise you how to accomplish these requirements in your location at a modest cost. 
Reengineered Machine This product includes all that is manufactured and suggested in the retrofit package as well as includes the unique feature of bodytorque cancellation of the trunk of a small female. This leads to several effects. For one, it will require as well as permit a refined cam profile. The bodytorque cancellation will be perfect for a small person but also greatly improve the average-size subject and help the large person somewhat.
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