Improve Your Times. With Exxentric Devices.
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Elevate your results by developing full-body strength, building event-specific conditioning, and preventing injury with the unique benefits of flywheel training.


Strengthen Each Leg of the Race!
Developing strength and conditioning across the three disciplines, swimming, cycling, and running puts particular demand on efficacy, efficiency, and load management.
The kBox and the kPulley cater to these needs by providing multi-exercise devices that can provide general strength and conditioning, low-impact resistance, injury prevention protocols, as well as sport-specific drills.
Train Better. Perform Better.
Discover Why Elite Triathletes Choose Flywheel Training.-
Minimize Overuse
Low impact resistance lets you maximize the benefits of strength training while minimizing overuse and fatigue from event training. -
Event-Specific
Safely condition for cycling with harness squats, strengthen the rotator cuff for swimming, or bullet-proof your joints for running. -
Portable
With the ultra-portable Lite or kPulley Go, you can take your strength training with as you cycle, run, or swim. -
Prevent Injury
Tailor your training to prevent or rehabilitate injuries with isoinertial variable resistance and eccentric overload.


Build the Foundation with the kBox
The kBox line lets you build foundational strength, power, and conditioning while minimizing fatigue, overuse, and complexity.
Max Strength, Max Safety
Safely implement heavy foundational strength training with exercises like harness squats – maximizing quad strength while minimizing axial loading and fatigue.
Explosive Power & Conditioning
Thanks to variable resistance that adjusts to user input, the kBox can directly develop both power and conditioning by letting athletes train ballistic power as well as metabolic conditioning.
Eccentric Overload
Seamlessly add the strength, power, hypertrophy, and injury-prevention benefits of Eccentric Overload squats, hinges, pulls, and presses for stronger and safer Triathlon.


Create New Possibilities with the kPulley
Master every training angle, add variation, and elevate upper-body development with the kPulley line.
Horizontal Plane
Round out your core and back training by twisting, pushing, pulling, and swinging in the horizontal plane.
Maximally Portable
Take your training with you with the ultra-compact kPulley Go. Pack a backpack, load the bike, and take strength with you.
Enhanced Training Efficiency
Simplify loading and supercharge your accessory work by performing rows, curls, extensions, raises, and rows with variable resistance.
Our Systems. Hand-selected for Triathlon.
Our Systems.
Hand-selected for Triathlon.

kBox Endurance Sports System
$ 2,335

kPulley Endurance Sports System
$ 2,120