LegExx System
The LegExx is a flywheel training device optimized for seated leg extension training. Besides the advantages offered by its variable resistance and eccentric loading capacity, the LegExx is uniquely mobile for a leg extension machine.
Minimal assembly is required upon arrival, unless you opt for the unassembled shipping option, which will come with a detailed guide.
About Exxentric products
Train Up To Your Potential
With the kBox, kPulley, and LegExx, instead of a fixed load determined by gravity when lifting weights, you work against the variable inertia of heavy steel flywheels determined by the effort and energy you unleash into the device.
Engage Every Muscle
These training devices are truly versatile and serve multiple purposes, allowing you to engage your upper body, core, and lower body with a wide variety of exercises.
Keep The Gym Nearby
It is completely portable and easy for anybody to carry or stow away.
Get Real-Time Feedback
Its kMeter app-based wireless feedback system can be used to measure and save actual power output and more.
About Exxentric Products
Scientific benefits
Exxentric products are renowned for their genial application of eccentric overload in regular training as well as its variable resistance, both backed by growing scientific support.
Mix and match
Switching between drills and users is quick and hassle-free.
Silent
Exxentric products practically don’t emit any sound at all.
Lower cost
These benefits result in increased efficiency of training programs whilst lowering the total costs as compared to alternatives.
kBox4 Active
Kickstart your Flywheel Training with our entry-level model. The perfect device for strength training, rehabilitation, injury prevention, and training in general. Available with our free Flywheel Training app to design all your kBox workouts.

- Ideal for...
- • Home Gyms
- • Personal Trainers
- • Group Classes
kBox4 Lite
Broader range of resistance provided by the lightest kBox model, practical to pack and bring with you on the move. Its built-in kMeter feedback system allows you to monitor your progress in real-time.

- Ideal for...
- • Travelling Athletes
- • Fitness Studios
- • Physiotherapy Rooms
kBox4 Pro
The premium and best-selling kBox model with the largest performance area. Made for intense workouts and serious strength building exercises. Its built-in kMeter feedback system allows you to monitor your progress in real-time.

- Ideal for...
- • Professional Teams
- • Performance Centers
- • Physiotherapy Clinics
kPulley2
The kPulley unlocks a variety of horizontal movements, creating limitless training possibilities especially when combined with the kBox. Its built-in kMeter feedback system allows you to monitor your progress in real-time.

- Ideal for...
- • Professional Teams
- • Performance Centers
- • Physiotherapy Clinics
LegExx
The LegExx is optimized for leg extension training sessions. It aims to isolate and strengthen the quadriceps muscles and it comes with a built-in kMeter feedback system.

- Ideal for...
- • Professional Teams
- • Health Clubs
- • Physiotherapy Clinics
Satisfaction Guarantee
We are not satisfied until you are. If you are not 100% happy with the product, you can return it within 30 days from purchasing and we will give you a full refund.
Expert Advice
Unsure which flywheel training system is the right equipment for you?
Our professional training advisors will happily suggest the strength training system tailored to your unique needs – completely FREE of charge.
OPEN FACILITIES
Curious to put Flywheel Training to the Test?
Experience the true effectiveness and potential of the Exxentric kBox, kPulley, or LegExx. Click here to find facilities that offer Exxentric Flywheel Training sessions in your region: