POC Octal helmets provide safety through superior head protection and visibility.

The Octal X helmet has been developed from the same technology and design as the award-winning Octal road helmet, notably the extreme ventilation, low weight, unibody shell construction and aerodynamic efficieny.

To perfectly suit the needs of cross country mountain biking the Octal X has added robustness and protection. The inclusion of POCs proven aramid bridge technology adds structural integrity and guards against impact penetration. A fundamental feature in the Octal X’s improved performance and saftey is the extended helmet shell, which covers more of the helmet liner ensuring that the helmet has enhanced strength properties with very little increase in weight.


Fully wrapped unibody shell construction
Light weight
Highly ventilated using unique ventilation design
Aramid bridge technology integrated with liner
High performance EPS shell covering more of the liner
Size adjustment system
Straps molded into liner
Eye garage to keep your sunglasses

Size Guide

Helmet sizes are based on the circumference of your head. To determine the correct size, wrap a measuring tape around your head. Once you've determined the measurement, you can use the table here as a guide.

  Small Medium Large
Head Circumference 50-56 54-60 56-62

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