An optional exercise attachment that allows you to upgrade the Nautilus NS 200, NS 300, NS 500 and NS 700 at any time:
- Combines biomechanically correct leg press and abdominal crunch movements
4 bar linkage system reduces joint stress and provides maximum workout effectiveness
- Unique Nautilus power link system creates progressive resistance to match the body’s natural strength curve
- A 2:1 strength curve doubles resistance to 400 lbs.
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