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The kBox squat is a basic flywheel training exercise with many variations and an important exercise for all subjects ranging from rehab patients to elite athletes. In performance, the strength in a squat is highly correlated to improved results in jump height and sprint start. In rehabilitation and for example ACL injuries and patellar tendinitis, the kBox squat is important to speed up a patient’s recovery.


The kBox squat can be done with restricted depth, traditional concentric-eccentric training, and overload, using attachments such as the ergonomic harness, hip belt or kBar. The kBox ensures a safe squat execution thanks to the possibility to limit the depth of the exercise.  No need to use the arms or hands makes the exercise convenient for someone that’s never been doing squats before or suffer from upper body injury.

Regular squat:

Performed using the harness or hip belt.







Goblet squat;

Performed with kGrips.







Zercher squat:

Performed with a kBar.







Zombie squat:

Performed with a kBar.







Go back to exercises, or read more about the applications of flywheel training.






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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