kBox Rack
$ 7,999 excl. tax
Born from a close collaboration between industry leaders Exxentric and Sorinex, the kBox Rack is an upgraded, heavy duty version of the renowned kBox. Designed for pro teams and commercial facilities, it boasts a larger and reinforced platform, supportive stall bars, a robust roller pad and more, ensuring top-tier performance and reliability.
Description
In flywheel training or isoinertial training, resistance is created through the inertia of a flywheel which is accelerated or decelerated with muscle force. The level of inertia of the flywheel rather than the weight determines the force needed. The principle is equivalent to that of a traditional yoyo device.
The resulting force in a flywheel training exercise depends on a combination of the inertia and the intensity you work with. With a higher inertia, the motion will be slower and more controlled, and your muscle will be able to produce a higher force. With a lower inertia, the motion will be faster which also puts higher demands on skill, balance and technique.
Features
Larger / Reinforced Platform Design for Commercial Use
High Precision Flywheel Training Technology & Components
Supportive Stall Bars for Assisted Work
Large Roller Pad for Rear Foot Elevated Squats and Single Leg Work
Angled Platform for Ankle / Foot / Squat Variations
Fits Sorinex Attachments and Modular Configurations*
*When adding attachments or making modular configurations from original design, make sure kBox Rack is bolted to the ground.

Rack includes:
- kBox Base with
- Angled Platform as an alternative to Foot Block
- Pre-attached Drive Belt
- Pre-attached Large Pulley Block
- Standard Accessory Pack with
- kMeter Feedback System
- Flywheels (1 x L, 1 x M)
- kGrips (2-pack)
- Hip Belt (Medium – Large)
- Roller Pad
Key Add-Ons:
- Flywheels for more resistance
- Advanced Flywheel Knob
- Maximizes platform’s flywheel capacity
- Attachments for an even wider range of exercises

Flywheels
The kBox Rack standard inertia capacity goes up to 0.280 kgm², which means it could be equipped with up to four flywheels made from laser cut and powder coated carbon steel in five different sizes (two more flywheels could be added on with an Advanced Flywheel Knob).
- Extra Large: 0.070 kgm²
- Large: 0.050 kgm²
- Medium: 0.025 kgm²
- Small: 0.010 kgm²
- Extra Small: 0.005 kgm²

Specifications
Depth | 0.92m (36.25") |
---|---|
Width | 1.19m (47") |
Height | 2.43m (95.5") |
Upholstery | Double-Stitched Premium Naugahyde |
Compatible flywheels | 0.005 kgm², 0.010 kgm², 0.025 kgm², 0.050 kgm², 0.070 kgm² |
Inertia range (standard) | 0.005 kgm² – 0.420 kgm² |
Range of motion | 180 cm (71") |
Feedback | Built-in kMeter feedback system |