Exxentric Single Exx

Exxentric Single Exx

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  • Uses the latest flywheel technology
  • Various resistance levels
  • Adjustable range of motion
  • Extra large flywheel
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Video Review

In-Depth Review

Exxentric SingleExx Review (2024): Two Machines for the Price of Two

Exxentric SingleExx Review (2024): Two Machines for the Price of Two

Our Exxentric SingleExx Review contains our thoughts on the high-end LegExx and LegFlexx machines, and lets you know who they’re meant for. Read the full review.

Pros & Cons

What we like ...
  • Pre-attached drive belt
  • Built-in handles for mobility
  • kGrip for eccentric overload training
  • Phone holder on the machine
What needs improvement ...
  • On the more expensive side
  • Flywheels sold separately
  • You have to download the kMeter app to track your progress

Product Summary

The Exxentric Single Exx is one of the latest machines in the Single Exx product line, which uses flywheel training technology. This versatile training device serves multiple purposes and allows you to work your upper and lower body with ease.

Made popular by the kBox4 and kPulley, the Exxentric Single Exx is advertised as a way to stop being limited by the direction of gravity like you would when lifting “normal” weights, and use the load to match your own exertion level.
The machine comes with built-in wheels and handles for increased mobility, as well as a pre-attached drive belt. The variable resistance levels provided by the different steel flywheels make it easy to adjust the machine for all strength levels. While you are using the equipment, you can place your phone in the holder attached and use the kMeter ll feedback system to track your progress.



31.5” L x 42.5” W



Maximum Weight

772 Lbs


210 Lbs

Compatible Flywheels

XS (0.005 kgm²), S (0.010 kgm²), M (0.025 kgm²), L (0.050 kgm²), XL (0.070 kgm²)


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Exxentric Single Exx

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      The Exxentric Single Exx uses revolutionary flywheel training technology that allows individuals to train their upper and lower body using a load that matches their own exertion level.