Volleyball Flywheel trainer

The kBox4 can be beneficial in many ways for the volleyball athlete.

The possibilities of flywheel training on the kBox highly correlate with the physiological requirements of competitive volleyball, offering accessible training for eccentric and explosive strength and for injury prevention.


Increase jumping performance by gaining both maximal and explosive strength. Unfortunately, ACL injuries are coming and preparing for the eccentric fatigue and load during landings is a crucial countermeasure. kBox is also important In rehabilitation after ACL injury and in the regular S&C training for players with back problems (learn more). Besides squats, popular exercises are hip extensions, split squats and lateral squats for lower limb.


The versatility, efficacy and mobility of the kBox are three key benefits leading volleyball coaches to incorporate the kBox and flywheel training into their programming.

With the kBox, efficient and supporting sport-specific training is easier to bring out in the field or on trips than any gravity-based weight training equipment, building a gym wherever the athlete is.

Enables unloading the player’s backs with the harness and save them from some of the strain the sport put on them with all the lower limb training, jumping and landings.

Players training for performance, prevention or in rehab after ACL surgery can all train together, just right by the court.

Further reading


Proceed to flywheel training equipment, or go back to applications for sports performance.

References from Twitter


kBox4 Active

Our entry level model for the serious personal trainer or demanding home user. The perfect tool in strength and rehabilitation at our lowest price point.

  • Entry Level Model
  • Holds 1-2 Flywheels
  • kMeter Compatible
  • Weighs 15 kg
  • Starting at €1 410 / $1 635
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kBox4 Lite

Offers the lowest weight and best portability which makes it perfect for frequent travel without compromising the training.

  • Enhanced Portability
  • Holds 1-4 Flywheels
  • Built in kMeter
  • Weighs 9.5 kg
  • Starting at €2 300 / $2 665
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kBox4 Pro

Our premium kBox model with the greatest versatility and largest performance area. It’s ideal for sports teams, premium fitness clubs and physiotherapy facilities.

  • Largest Performance Area
  • Holds 1-4 Flywheels
  • Built in kMeter
  • Weighs 15.5 kg
  • Starting at €2 990 / $3 465
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The kPulley2 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 €1 890 / $2 190
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