Nautilus Nitro Plus Bicep Curl

Better results, delivered faster, with this upper body strength equipment on your workout floor. The Nautilus Nitro® Plus Biceps Curl has a compound position design that places the arms in a raised position for full bicep contraction.

  • Patented and innovative elevated humerus for optimal biceps contraction and user comfort
  • Independent movement arms for a balanced workout
  • Adjustable back pad provides precision axis alignment
  • Supinated pivoting handles for varying forearm lengths and comfort


You really have to experience the Nitro® Plus advantage to understand just how radical a difference there is between their Bicep Curl machine and other similar fitness equipment. During any exercise, an individual’s strength varies at different points. Other weight machines don’t even attempt to address this strength curve — instead, the weight remains constant from beginning to end. For the user, this can limit muscle recruitment and overall performance.


This unique technology is cutting edge. Driven by their trademark four-bar linkage system, cam design, or a combination of both, this dynamically matches the body’s potential increases and decreases in strength. 


With Nitro® Plus Bicep Curl, clients get immediate, smooth resistance and proper muscle loading through the complete range of motion. The converging press arms engineering on this line of fitness equipment provides the correct way to work out, leading to unprecedented results. The alternative strength training machine designs force the user to follow an incorrect path or motion. Additionally, the independent converging press arms also ensure greater joint rotation for increased muscle contraction for every user.


  • 12 years: Frames, welded moving parts and weight stacks.
  • 3 years: For any moving parts and parts under normal use and service, not already disclosed by this warranty.
  • 1 year: Labor warranty.
  • 6 months: Pads, grips and tethered weight stack pins.
Strength training innovations deliver rewarding results with the Nitro Plus Bicep Curl from Nautlius' fitness equipment engineering technology.
Nautilus Nitro Plus Bicep Curl Specifications