Extension Strap

The accessory you need for certain exercises or users, where the standard drive belt is not long enough.

The kBox is equiped with a drive belt long enough to accomodate most users and exercises. However, some customers have requested a possibility to extend the length for certain applications such as over head exercises and rotations. Hence, we developed the Extension Strap.

Typical exercises facilitated by the Extension Strap are military press, push press and single arm row. It is applied mainly by performance coaches and personal fitness trainers.

The Extension Strap is 25 mm wide and 118 cm in circumference, custom made in polyester and light-weight metal. Weighing only 85 gram in total, the Extension Strap is customised for flywheel training.


The price of the Extension Strap is 20 EUR excluding local tax and shipping.



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The Extension Strap adds €20 / $25 to a kBox system.
Proceed to order and delivery. ⏩