The kBox4 from Exxentric is a revolutionary piece of training equipment that is unlike anything we've tested before. Not only is the flywheel system employed by the kBox4 effective, but the build quality and precision of the machine is unparalleled.

What is flywheel training?

Video Review

Unboxing

Exxentric kBox4 Review

Suggested Improvements

Full Rating

Where to Purchase

Further reading

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