While flywheel training is gaining more and more momentum in performance sports and growing scientific support, what is stopping personal trainers, gyms and their clients to benefit from this technology? Nothing, really.

The average client to a personal trainer can really be anyone ranging from the average Joe to a young fitness athlete or an older sedentary person. What they have in common is that they want results and they will go with their money where they can find it.

The Exxentric kBox offers highly efficient flywheel training in a safe and ergonomic way. The variable resistance gives and automatically adjusted the load to the subjects’ intensity during the whole range of motion and stimulates an increase in strength and mass in superior ways compared to traditional weights. The easily accessible eccentric load or overload gives faster and larger gains in strength and mass, something every client desires, whether he or she is the stressed-out CEO, the “get-back-in-shape” Mother, the serious bodybuilder or fitness athlete.

With the variable resistance, you don’t have to change weights between sets or users to the same extent, saving a lot of time in small group PT. Shorter or taller clients can easily workout together without having to change the height of the rack. This makes sessions time efficient and saves time for you and your clients. With our computerised feedback systems, you can follow your clients’ progression, a very motivational tool that will keep them going.

Using a harness for lower limb exercises puts less demand on technique and more on effort and performance. The harness unloads upper back from point pressure and lowers back from torque, which allows clients to focus on their performance instead. You can take your new clients practically from the street and load them in the kBox squat from day 1!

Another practical advantage with the kBox is its mobility. Only weighing about 23 kg (50 lbs) with accessories, you can move the equipment easily in the bigger gym if you want to set up circuit training or work in an aerobic or dance studio in a group training session. With the small floor area of 0.5 square meters needed, the smaller gym or home-studio can be much more competent without overcrowding.

With all these advantages in mind, the last point, the economical really is self-explanatory. With a single device offering over 30 exercises, mobility, safety and efficacy with the same or lower price than a complete barbell set you really get your money’ worth.

Usage of flywheel training in fitness is increasing, with gyms both in Europe and the US have started to include kBox training in their client offering.

Home Fitness

Do you struggle to find enough time in the day to make it to the gym as much as you would like too? Or maybe you just aren’t a fan of crowded gyms or exercise facilities. The kBox4 is the perfect solution for you to use at home. [Read more]


Emergency and uniformed services

In emergency and uniformed services, professional kBox users face similar challenges as users in sports and fitness, but there are also important differences. [Read more]



The kBox is a great tool for strength training in youths for both sports performance and fitness, from safe basic movements to eccentric loading. [Read more]



With its variable resistance, the kBox is highly suitable for strength training for seniors and older adults, for rehabilitation as well as general health and fitness. [Read more]



For hotels and resorts, the kBox offers highly efficient but safe, evidence-based strength training within gym facilities as well as in the privacy of individual guest rooms. [Read more]



Further reading



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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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