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POC Octal X Spin Helmet

Item # POC00B2

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Item # POC00B2


Off-road optimized.

Serious cross-country racers are known to use roadie helmets while competing off-road since road helmets are generally lighter, more minimal, and offer better ventilation. POC realized this and decided to tweak its ever popular road helmet, the Octal, continuing with the features that make it so popular on the road but adding a little more coverage for the protection you need while buzzing, along doing your singletrack dance between the trees. The Octal X found its way into the lineup and proved itself worthy among those who shave their legs and care more about watts/kg than how big the gap is between the doubles. XC pilots can still get rowdy and go fast too though, and this model, the Octal X Spin Helmet, adds POC's patent pending rotational impact protection system.

Spin is designed to lessen the effects of certain impacts by reducing the amount of force transmitted to the head and brain. It uses an innovative and unique pad, sitting directly on your head, that can shear in any direction during an impact. In short, Spin pads allow the helmet to move relative to the head during certain falls, helping to reduce forces transmitted to the brain.

POCs proven aramid bridge technology adds structural integrity to the helmet and the Octal X Spin boasts extended coverage over the back of the head and at the temples, for added protection no matter what surface you're riding on. True to its dirt-focused intention, the Octal X's shell extends to cover more of the liner foam than the Octal, which improves overall durability against low hanging branches without sacrificing lightweight functionality. It's still equipped with large vents to keep you feeling cool when you're gassed while riding up unrelenting climbs.

  • POC optimized the Octal to the dirt
  • Lightweight and durable EPS shell construction
  • Aramid bridge tech reinforces the helmet structure for added protection
  • Extended helmet shell provides coverage for foam liner
  • Eye garage securely holds most sunglasses
  • SPIN technology can help reduce forces transmitted to the brain on certain impacts

Tech Specs

Shell Material:
Impact Foam:
Multiple Impact:
Recommended Use:
Manufacturer Warranty:
1 year

Size Chart


Head Circumference  21.7 - 22.8in
(55 - 58cm)
23.2 - 24.4in
(59 - 62cm)
Octal, Cerebel
Head Circumference  19.7 - 22in
(50 - 56cm)
21.3 - 23.6in
(54 - 60cm)
22 - 24.4in
(56 - 62cm)
Skull Orbic Comp, Skull Orbic X, Skull Comp, Super Skull Comp, Skull X, Skull Light, Receptor Bug, Sinuse, Receptor Bug Comm.
Head Circumference 20 - 20.5in
(51 - 52cm)
20.8 - 21.3in
(53 - 54cm)
21.5 - 22in
(55 - 56cm)
22.5 - 22.8in
(57 - 58cm)
23.3 - 23.5in
(59 - 60cm)
24 - 24.4in
(61 - 62cm)
Crane, Fornix, Fornix Backcountry, Skull Light II, Receptor Bug Adjustable, Trabec, Trabec Race, Receptor Flow, Skull Light Women's
Head Circumference 20 - 21.3in
(51 - 54cm)
21.5 - 22.8in
(55 - 58cm)
23.3 - 24.4in
(59 - 62cm)
Synapsis, Frontal, Receptor+, Receptor Backcountry
Head Circumference  20.9 - 21.3in
(53 - 54cm)
21.7 - 22in
(55 - 56cm)
22.4 - 22.8in
(57 - 58cm)
23.2 - 23.6in
(59 - 60cm)
Cortex DH
Head Circumference  20.9 - 21.7in
(53 - 55cm)
21.7 - 22.4in
(55 - 57cm)
22.8 - 23.6in
(58 - 60cm)
How to Measure:
Measure around your head where your hat would fit comfortably.

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