Dominate the Court. With Basketball Flywheel Training.
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Blow up your vertical, improve lateral speed, and injury-proof joints with explosive variable resistance training, sport-specific movement freedom, and eccentric overload!


A Stronger Basketball Player – Is a Better Basketball Player
By harnessing the endless and variable rotational energy of a flywheel – Exxentric devices offer resistance that is more effective for explosive jump training, a movement freedom with greater carryover to game-specific action, and a loading profile that is safer and more intuitive for basketball athletes.
By letting you adjust the angle of resistance and eccentrically overload sport-specific actions -Eccentric flywheel let you replicate and prepare for on-court demands. Directly load lateral changes of direction, overload the amortization phase for improved and safer force transfer, and explosively train harness and single-leg squat variations for vertical jump power.
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Explosive Power
With variable resistance that lets you train with maximal explosive power on every rep – Exxentric devices put inches on your vertical, not just pounds on your squat. -
Sport-Specific Lateral Training
Multi-directional resistance and specialty training accessories let you train a wide range of loaded lateral movements for game-defining change of direction speed. -
Eccentric and Amortization
Harness eccentric overload to supercharge the eccentric and amortization phase and blow up your vertical jump, change of direction speed, and overall power production. -
Prevent Injury
Prepare your joint and tendons for any landing, change of direction, or misstep with scientifically-proven eccentric overload protocols.
David Bass, Wake Forest’s Assistant Athletic Director of Sports Performance, sharing his insights on the game-changing benefits of Exxentric’s kBox and kPulley!
Build the Foundation with the kBox
The kBox line gives basketball players access to all the benefits of heavy compound training with none of the usual drawbacks
- Max Strength, Max Safety
Safely implement heavy strength training with exercises like harness squats – maximizing foundational strength without straining the lower back and minimizing risk of injury. - Change of Direction
Thanks to variable resistance and a wide range of accessories, the kBox lets you explosively train lateral strength movements for unmatched change of direction and on-court agility. - Basketball-Specific Movements & Drills
Like heavy lateral squats or specific ROM squats – the kBox offers unique opportunities to combine heavy strength training with maximal sport-specific carryover.


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 in-game power by twisting, pushing, pulling, and swinging in the horizontal plane. - Maximize Upper Body Development
Target the triceps, shoulders, and chest for bulletproof joints, unshakeable upper body stability, and improved box out power. - Basketball-Specific Movements & Drills
Take advantage of adjustable heights and angles to perfectly replicate in-game actions chest passing or box outs.


Our Systems. Hand-selected for Basketball.
Our Systems.
Hand-selected for Basketball.

kBox Contact Sports System
$ 2,530

kPulley Contact Sports System
$ 2,150

SingleExx Combo
$ 12,200