kMeter
$ 490 excl. tax
The Exxentric kMeter is our wireless, science-based feedback system that turns Flywheel Training into measurable, actionable performance data.
The certified kMeter captures key training metrics including power, energy, and force estimates, which are presented in the free Exxentric App. Coaches, physiotherapists, athletes, and patients gain clear insight into every repetition, session, and progression. Trusted worldwide, the kMeter comes built in on all LegExx, LegFlexx, kPulley Pro, kPulley Go+, kBox Pro and kBox Lite devices, making objective feedback a standard part of training.
For the kBox Active and kPulley Go the kMeter can be added during assembly by our technicians or installed easily at home. Review the information below to select the correct kMeter version for your device and start tracking your Flywheel Training with the free Exxentric App.
Description
Compatibility

kPulley Go. Jet Black.
Select from the dropdown menu or click on the link directly above
The kMeter for the kPulley Go has undergone a small but important design change since its launch to ensure its robustness. So unless you’re purchasing this feedback module together with a brand new kPulley Go, please use the optional message field at checkout to specify the serial number of your kPulley Go to help ensure that we send you the right kMeter.
Check Your kBox Sensor Before Ordering
Flip your kBox over and inspect it by lifting off the shaft cover
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Magnet Sensor
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Rubber Sensor Disc
Select: kBox Active. Other.
- Other no longer available legacy Model – Pre 2023
- Desert Bronze, Carbon Black, Arctic Blue, Frosty Green
Not sure which version you have? Always verify the sensor type before placing an order.
Specifications
The system measures flywheel rotations wirelessly with high accuracy at rotational speeds of 155 revolutions per second and at a sample rate of 10000 Hz it receives 64 impulses per revolution. This all gets processed in real-time into a smartphone app with a simple and accessible interface to present key training results, including:
- Concentric and eccentric power
- Range of motion
- Force
- Eccentric overload
- Energy expenditure
The kMeter system consists of two parts: the wireless transmitter connected to the flywheel training device and its corresponding app.
Exxentric App
The Exxentric App can be downloaded for free and installed by every user of a LegExx, LegFlexx, kPulley or kBox equipped with the kMeter hardware. Users can monitor the results directly on their mobile devices and are able to save, browse, share or even export for analysis.
Read more and download the app here. Further supporting material can be found here.
Specifications
| Built-in | kBox Pro, kBox Lite, kPulley Pro, LegExx, LegFlexx |
|---|---|
| Available as add-on for | kBox Active, kBox4 Active (Legacy), kPulley Go |
| Sample rate | 10000 Hz (155 revolutions/second) |




