1. Worldwide delivery
  2. 100% satisfaction guarantee
  3. 2-year warranty
  4. Made in Sweden

Free Harness with every kBox Active System. Limited Time Offer.

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The kBox

Developed for Performance. Built to Last.

One Platform. Foundational Strength.

Develop full-body strength, power and resilience with adaptive flywheel resistance.
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Explore kBox

kBox: Our Signature Product

The kBox is Exxentric’s flagship flywheel training platform, trusted by athletes, coaches, rehabilitation professionals, and fitness enthusiasts worldwide.

Its versatility and proven track record have made it the platform of choice for building strength, power, and resilience with adaptive resistance.

kBox Adapts To Your Strength

Unlike traditional weights, flywheel resistance adapts automatically to your effort. The harder you work, the more resistance the flywheel creates, helping maximize every repetition while enabling eccentric overload.

The kBox delivers a highly effective full-body training stimulus for strength, power, hypertrophy, and rehabilitation – all on a single platform.

Learn about Flywheel Training >

  • Adaptive Resistance

    With unlimited, auto-adjusting resistance, the kBox let’s you maximize your training intensity without compromising safety.

  • All-in-One

    The kBox delivers full body training in a compact footprint, offering more than 70 exercises for upper and lower body with one versatile Flywheel System.

  • Data-Driven Results

    With Exxentric App integration, you can measure power, track progress, and compare performance over time. Train with precision and make every rep count.

  • Portable by Design

    Every kBox is built for portability and easy setup. The kBox Lite, our lightest model at approximately 10 kg, makes high-performance Flywheel Training accessible wherever you go.

Chosen by Elite Athletes Worldwide

Used across professional sports and Olympic disciplines to build strength, power, and athletic performance.

  • Linus Omark

    Swedish Ice Hockey Player (NL)
    Used to play for Buffalo Sabres (NHL)

  • Paul Millsap

    US Basketball Player (NBA)
    4x NBA All-Star

  • Jeannine Gmelin

    Swiss Rower
    World Rowing Championships Winner (2017)

  • Kim Conley

    US Track & Field Athlete
    12th in 5000m Olympic Finals (2016)

  • Jake Arrieta

    Former Baseball Pitcher (MLB)
    NL All-Star & World Series Champion (Chicago Cubs)

  • Sandi Morris

    US Pole Vault Athlete
    U.S. Women’s Outdoor Pole Vault Record Holder

Your Training. Your System.

Complete kBox setups for every training environment.

Our Professional Systems

Built around the kBox Lite and Pro platforms for athletes, coaches, clinics and facilities.

kBox platform with M flywheel, kGrips, kBar, ankle cuffs and hip belt

kBox Core System

From: $ 3,335 excl. tax
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kBox platform with M flywheel, kGrips, kBar, ankle cuffs, hip belt, decline board, extension strap and harness

kBox Advanced System

From: $ 4,085 excl. tax
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kBox platform with M flywheel, kGrips, A90 kGrips, head harness, cover mat, kBar, knurled kBar, ankle cuffs, hip belt, decline board, extension strap and harness

kBox Ultimate System

From: $ 4,485 excl. tax
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Our Home System

Full-body strength training at home, built around the kBox Active.

kBox Active System with bedroom in the background

kBox Active System

$ 3,030 $ 2,401
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Three Platforms. Your Choice.

Compare our kBox Active, Lite and Pro platforms and find your fit.

kBox Active

kBox Active

From: $ 2,401
Explore Systems

Best For

Hobby Athletes,
Home Training
4 flywheels
Up to 4 L flywheels
with Advanced Flywheel Knob
kBox Active surface area
Training surface area
16 kg
35 lbs
kBox Active chassis
Steel chassis

kMeter Optional
kBox Lite

kBox Lite

From: $ 3,335
Explore Systems

Best For

Portable
Pro-level Training
6 flywheels
Up to 6 L flywheels
with Advanced Flywheel Knob
kBox Lite surface area
Training surface area
10 kg
22 lbs
kBox Lite chassis
Aluminum chassis
built-in kMeter
Performance Tracking
via kMeter
kBox Pro

kBox Pro

From: $ 4,235
Explore Systems

Best For

Elite Training
& Facility Usage
6 flywheels
Up to 6 XL flywheels
with Advanced Flywheel Knob
kBox Pro surface area
60% bigger surface area
15.5 kg
34 lbs
kBox Pro chassis
Aluminum chassis
built-in kMeter
Performance Tracking
via kMeter
custom design for kBox Pro
Custom Design

Specialized kBox Solutions

  • kBox Medical

    For rehabilitation, controlled strength development and return-to-performance training.
    Learn More

  • kBox Rack

    Rack-integrated kBox for performance facilities and team environments.
    Learn More
    kBox Rack closeup

More Options. More Possibilities.

More Options. 

More Possibilities.

Custom Design

Make your kBox your own.

Learn More

New Snap Lock

Stronger than ever.

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Platform Extension

More space for wider stance.

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The Exxentric App

Track progress and access workouts
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Person looking at a list of workouts in the Exxentric App
Person looking at a list of workouts in the Exxentric App

kBox Exercises

Discover lower and upper body exercises for the kBox

Explore
  • kBox Biceps Curl

    kBox Biceps Curl

  • kBox4 Calf Raise Decline Board

    kBox Calf Raise

  • kbox standing core twist

    kBox Core Twist

  • Exxentric kBox4 Regular Deadlift kBar

    kBox Deadlift

  • High Pull

    kBox High Pull

  • kBox Hip Extension

    kBox Hip Extension

  • kbox Hip Flexion

    kBox Hip Flexion

  • kbox hip swing

    kBox Hip Swing

  • kBox4 Single Arm Lateral Side Raise

    kBox Lateral Raise

  • kBox4 Lateral Squat Harness

    kBox Lateral Squat

  • Leg Curl

    kBox Leg Curl

  • kBox4 Military Press

    kBox Military Press

  • kBox Push Press

    kBox Push Press

  • kbox romanian deadlift

    kBox Romanian Deadlift

  • kbox bent over row with kbar

    kBox Row

  • kBox4 Seated Shoulder Press

    kBox Seated Shoulder Press

  • kBox Shrug

    kBox Shrug

  • kBox Side Crunch

    kBox Side Crunch

  • kBox Bulgarian Split Squat

    kBox Split Squat

  • kBox Harness Squat

    kBox Squat

  • kBox Straight Arm Lift

    kBox Straight Arm Lift

  • kBox4 Thruster

    kBox Thruster

  • kBox4 Seated Triceps Extension

    kBox Triceps Extension

  • kBox4 Wrestling Rotation

    kBox Wrestling Rotation

kBox Biceps Curl

What you need:

kBox Calf Raise

What you need:

kBox Core Twist

What you need:

kBox Deadlift

What you need:

kBox High Pull

What you need:

kBox Hip Extension

What you need:

kBox Hip Flexion

What you need:

kBox Hip Swing

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kBox Lateral Raise

What you need:

kBox Lateral Squat

What you need:

kBox Leg Curl

What you need:

kBox Military Press

What you need:

kBox Push Press

What you need:

kBox Romanian Deadlift

What you need:

kBox Row

What you need:

kBox Seated Shoulder Press

What you need:

kBox Shrug

What you need:

kBox Side Crunch

What you need:

kBox Split Squat

What you need:

kBox Squat

What you need:

kBox Straight Arm Lift

What you need:

kBox Thruster

What you need:

kBox Triceps Extension

What you need:

kBox Wrestling Rotation

What you need: