Endurance Sports

Strength training has proven benefits for endurance sports athletes, for which the kBox offers a highly potent solution.

With flywheel training on the kBox coaches get a versatile and portable tool for efficient and evidence-based strength training.


The implementation of strength training during the preparation of top endurance athletes plays an important role in performance output, and it’s associated with improvements in middle and long-distance performance. Strength training has been shown to improve energy cost of locomotion (running economy), maximal force and power output, and thus performance, among elite endurance athletes. Moreover, results suggest there are no detrimental effects on either VO2max or aerobic endurance.

Besides that, eccentric loads have been shown to be an effective tool to prevent injuries such as tendinopathies, as well as to rehabilitate them at a later stage. The portability and versatility of the kBox allow athletes to bring the complete equipment to training camps overseas without having to worry about complex logistics.

Several top endurance athletes experience benefit from the kBox by using high inertia to improve their max strength, and even eccentric overload seems to improve strength and power output in a shorter period of time while not affecting global performance in the field.


The kBox is already in use by several prominent endurance sports athletes, notably including for example long distance runners Ryan and Sara Hall.

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

Proceed to learn about the kBox flywheel training device. 

Contact us for a discussion about the applications of flywheel training in your field.


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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