Optimize Growth. With Hypertrophy Flywheel Training.
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Harness eccentric overload, variable resistance, and enhanced exercise selection for scientifically optimized hypertrophy training!


Let Science Drive Growth
Many athletes looking to maximize hypertrophy are turning to flywheel training for its unique scientifically-backed advantages over traditional weightlifting methods.
With Exxentric devices, you can train smarter with variable resistance, eccentric overload, and the freedom to customize exercises for optimal hypertrophy results.
Train Better. Grow Better.
Discover Why Athletes Choose Flywheel Training.-
Eccentric Overload
Consistently shown to elevate hypertrophy – Exxentric devices let you easily and safely integrate eccentric overload in your hypertrophy training. -
Variable Resistance
Self-adjusting variable resistance means perfect load at every angle and muscle length – creating perfect reps from start to finish! -
Exercise Selection
Offering exercises like harness squats – Exxentric devices let you train heavy compound movements with minimized axial loading and improved muscle targeting. -
Multi-Directional Resistance
Unlike gravity, flywheel resistance isn’t limited to one vector – opening up a wide range of technique modifications for better stretch, pump, and mind-muscle connection.
Build the Foundation with the kBox
The kBox line delivers all the benefits of heavy compound training without the drawbacks of traditional lifting!
- Optimized Compound Training
Perform heavy squats and other compound exercises with minimal axial loading, reducing strain on the lower back while maximizing muscle gains. - Eccentric Overload
Seamlessly take advantage of eccentric overload training to stimulate muscle growth in movements like assisted overload squats, curls, and rows. - Variable Resistance
Variable, multi-directional resistance ensures optimal muscle activation by perfectly loading each rep through every angle, muscle length, and sticking point.


Create New Possibilities with the kPulley
Replace and improve the traditional cable with the kPulley line!
- Unlimited Resistance
Gone are the days of being too strong for the commercial tricep pushdown. With unlimited resistance, the kPulley lets you push your isolation exercises as hard as your compounds. - Upper Body Hypertrophy
Extensions, curls, lateral raises, or anything else you’ve ever used a cable for can be done with perfectly loaded, scientifically backed variable resistance and seamless eccentric overload. - Customizable Movements
Adjust heights and angles to match your body’s needs and maximize muscle engagement while maintaining perfect loading.
Bespoke Systems. Tailored to Hypertrophy.
Bespoke Systems.
Tailored to Hypertrophy.

Forget about traditional cables and level up your hypertrophy training with the complete kPulley Advanced system!
$ 2,170
Complete Pack

Flywheel supercharged traditional leg curl and extension – cause legs can never be big enough!
$ 10,990