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  3. 12 month warranty
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Increase your strength training effectiveness

About Exxentric

Whether your goal is to get an edge on your athletic performance, prevent or rehabilitate an injury or improve your general health and fitness, flywheel training with Exxentric gives you a number of advantages.


Join the Movement

What Makes Flywheel Training Unique


Increases your strength training effectiveness

It increases the effectiveness by applying the inertia of a flywheel instead of simple gravity to create optimal resistance.


Improves performance & rehabilitation

It improves the efficiency of training programs while lowering the total costs as compared to alternatives.

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Join the movement

Strength & Health Benefits


Standard and advanced training methods

Exxentric gives you opportunities to perform effective standard exercises as well as advanced methods for eccentric, concentric and isometric training.


Advantages over traditional training

The resistance is variable and unlimited. Eccentric overload can easily be achieved as well as mobility, ergonomic and economy.

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Announcing New and Redesigned kBox Features

Exxentric’s Head of R&D, Fredrik Correa announces new and redesigned kBox4 features for optimizing your training.

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Assessing Your Eccentric Overload

Since the launch of the kMeter we have received a lot of positive feedback.

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User stories

Fredrik Correa Interviewed on the Historic Performance Podcast

In today’s episode, Exxentric co-founder Dr Fredrik Correa is interviewed by coach James Darley.

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New High-End Systems and Free Global Shipping

Today, we are launching our most complete kBox configurations so far.

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Why Our R&D Team Might Make You Disappointed

The insider’s story on our recently launched family of flywheel training devices and a behind the scenes look at the Exxentric R&D mission.

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Our product family

Designed for Multiple Applications

Exxentric products are being used by athletes and therapists for a wide range of flywheel training applications. From its initial break-through in performance sports to recent years, personal trainers have discovered what flywheel training and Exxentric products investment can do for businesses in Health & Fitness.


kBox4 Active

The Newest model, the kBox4 Active is built on proven, reliable technology. The perfect tool in strength and rehabilitation at our lowest price point.

  • Newest Model
  • Holds 1-2 Flywheels
  • kMeter Compatible
  • Weighs 15 kg
  • Starting at €1 410 / $1 585
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kBox4 Lite

Often chosen for its smaller foot-print, the kBox4 Lite model is of a lower weight, portability and not to mention its competitive entry cost level.

  • Portability
  • Holds 1-4 Flywheels
  • Built in kMeter
  • Weighs 9.5 kg
  • Starting at €2 300 / $2 575
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kBox4 Pro

The kBox4 Pro is our premium model with the greatest versatility. It’s ideal for sports teams and larger training and physiotherapy facilities.

  • Largest Floor Space
  • Holds 1-4 Flywheels
  • Built in kMeter
  • Weighs 15.5 kg
  • Starting at €2,990 / $3,345
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The kPulley is the ideal horizontal solution for improving strength by offering flywheel training for rotational and pull exercises.

  • Horizontal Model
  • Holds 1-2 Flywheels
  • Built in kMeter
  • Easy to assemble
  • Starting at €1 750 / $1 955
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Try before you buy

Find an Exxentric Product Facility Near You

Your satisfaction as an Exxentric customer is our highest priority. Why not try out an Exxentric product before you invest in the equipment, click here to discover all the resellers in your area!

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About us

Exxentric was born out of a real need

Exxentric AB is a company developing innovative, science-based training equipment and methods for strength and conditioning, including the kBox, and the kPulley used by performance coaches, personal trainers and physiotherapists worldwide since 2011.

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