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Octal X

color Carbon Black

Octal X

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$220.00 - $260.00

Variations

    • Hydrogen White
    • Carbon Black
    • Thaum Red
    Color
    • *Please select Size

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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.

Item No. 10651

  • 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

  • Weight Europe:
  • S: 220g
  • M: 230g
  • L: 260g

  • Weight CPSC:
  • S: 250g
  • M: 270g
  • L: 300g
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class="yotpo-header-element "> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">Darin A.</span> <div class="label-with-tooltip pull-left"> <span class="y-label yotpo-user-title yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" aria-describedby="132485441">Verified Buyer</span> </div> <div class="yotpo-clr"></div> <span class="yotpo-review-stars "> <span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="sr-only" tabindex="0">5 star rating</span> </span> <div class="yotpo-clr"></div> </div> <div class="yotpo-header-element yotpo-header-actions "> <span class="y-label yotpo-review-date">11/10/19</span> </div> </div> <div class="yotpo-main "> <div class="content-title yotpo-font-bold"> Octal X </div> <div class="yotpo-clr"></div> <div class="yotpo-review-wrapper"> <span class=sr-only id="132485441-ada-summary-text">Review by Darin A. on 10 Nov 2019</span> <span class=sr-only id="132485441-ada-title-text">review stating Octal X</span> <div class="content-review" id="132485441"> Bought to replace a Giro Montaro. So much more compact and lightweight. Head measures 57 cm and size medium fits well with room for a liner. </div> </div> <a class="product-link-wrapper " aria-label="Product Octal X" aria-hidden="true" tabindex="-1" href="https://yotpo.com/go/499ohn81" target="_blank" rel="nofollow"> <div data-product-id="48116908" class="y-label product-link"> On Octal X </div> </a> </div> <div class="yotpo-footer "> <div class="footer-actions"> <span class="yotpo-action" data-type="toggleFade" data-target="share-review" aria-labelledby="review-132485441" role="button" tabindex="0" aria-expanded="false"> <span class="yotpo-icon yotpo-icon-share"></span> <span class="y-label">share</span> <span class="yotpo-icon yotpo-icon-seperator"></span> </span> <span class="sr-only" id="review-132485441">' Share Review by Darin A. on 10 Nov 2019 </span> <span class="share-options-wrapper"> <span role="list" class="share-options share-review"> <span role="listitem" data-social="facebook"> <span class="y-label yotpo-action"> <a class="social-link 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class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="up">0</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="down" role="button" aria-label="vote down Review by Darin A. on 10 Nov 2019" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-down"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="down">0</span> </div> <div class="footer-additional-actions"> <span class="y-label yotpo-review-date">11/10/19</span> </div> <div class="yotpo-clr"></div> </div> </div> <div class="yotpo-review yotpo-regular-box " data-review-id="131940258"> <div class="yotpo-header yotpo-verified-buyer "> <span class="yotpo-icon-profile yotpo-header-element pull-left"> <span class="yotpo-user-letter">J</span> <span class="yotpo-icon yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" data-target-container="yotpo-header"></span> </span> <div class="yotpo-header-element "> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">jason C.</span> <div class="label-with-tooltip pull-left"> <span class="y-label yotpo-user-title yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" aria-describedby="131940258">Verified Buyer</span> </div> <div class="yotpo-clr"></div> <span class="yotpo-review-stars "> <span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="sr-only" tabindex="0">5 star rating</span> </span> <div class="yotpo-clr"></div> </div> <div class="yotpo-header-element yotpo-header-actions "> <span class="y-label yotpo-review-date">11/05/19</span> </div> </div> <div class="yotpo-main "> <div class="content-title yotpo-font-bold"> Octal X </div> <div class="yotpo-clr"></div> <div class="yotpo-review-wrapper"> <span class=sr-only id="131940258-ada-summary-text">Review by jason C. on 5 Nov 2019</span> <span class=sr-only id="131940258-ada-title-text">review stating Octal X</span> <div class="content-review" id="131940258"> Great helmet. Love the fit and the look! </div> </div> <a class="product-link-wrapper " aria-label="Product Octal X" aria-hidden="true" tabindex="-1" href="https://yotpo.com/go/499ohn81" target="_blank" rel="nofollow"> <div data-product-id="48116908" class="y-label product-link"> On Octal X </div> </a> </div> <div class="yotpo-footer "> <div class="footer-actions"> <span class="yotpo-action" data-type="toggleFade" data-target="share-review" aria-labelledby="review-131940258" role="button" tabindex="0" aria-expanded="false"> <span class="yotpo-icon yotpo-icon-share"></span> <span class="y-label">share</span> <span class="yotpo-icon yotpo-icon-seperator"></span> </span> <span class="sr-only" id="review-131940258">' Share Review by jason C. on 5 Nov 2019 </span> <span class="share-options-wrapper"> <span role="list" class="share-options share-review"> <span role="listitem" data-social="facebook"> <span class="y-label yotpo-action"> <a class="social-link popup-link" data-network="facebook" 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<span class="yotpo-icon yotpo-icon-separator"></span> </span> <span class="yotpo-icon yotpo-icon-seperator"></span> </span> </span> </div> <div class="yotpo-helpful"> <span class="y-label label-helpful">Was this review helpful?</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="up" role="button" aria-label="vote up Review by jason C. on 5 Nov 2019" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-up"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="up">0</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="down" role="button" aria-label="vote down Review by jason C. on 5 Nov 2019" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-down"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="down">0</span> </div> <div class="footer-additional-actions"> <span class="y-label yotpo-review-date">11/05/19</span> </div> <div class="yotpo-clr"></div> </div> </div> <div class="yotpo-review yotpo-regular-box " data-review-id="124729784"> <div class="yotpo-header yotpo-verified-buyer "> <span class="yotpo-icon-profile yotpo-header-element pull-left"> <span class="yotpo-user-letter">J</span> <span class="yotpo-icon yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" data-target-container="yotpo-header"></span> </span> <div class="yotpo-header-element "> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">Jill T.</span> <div class="label-with-tooltip pull-left"> <span class="y-label yotpo-user-title yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" aria-describedby="124729784">Verified Buyer</span> </div> <div class="yotpo-clr"></div> <span class="yotpo-review-stars "> <span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="sr-only" tabindex="0">5 star rating</span> </span> <div class="yotpo-clr"></div> </div> <div class="yotpo-header-element yotpo-header-actions "> <span class="y-label yotpo-review-date">09/09/19</span> </div> </div> <div class="yotpo-main "> <div class="content-title yotpo-font-bold"> Octal X </div> <div class="yotpo-clr"></div> <div class="yotpo-review-wrapper"> <span class=sr-only id="124729784-ada-summary-text">Review by Jill T. on 9 Sep 2019</span> <span class=sr-only id="124729784-ada-title-text">review stating Octal X</span> <div class="content-review" id="124729784"> Love the fit...comfortable and feels light. Vented just enough so it does not feel hot on warm days. </div> </div> <a class="product-link-wrapper " aria-label="Product Octal X" aria-hidden="true" tabindex="-1" href="https://yotpo.com/go/499ohn81" target="_blank" rel="nofollow"> <div data-product-id="48116908" class="y-label product-link"> On Octal X </div> </a> </div> <div class="yotpo-footer "> <div class="footer-actions"> <span class="yotpo-action" data-type="toggleFade" data-target="share-review" aria-labelledby="review-124729784" role="button" tabindex="0" aria-expanded="false"> <span class="yotpo-icon yotpo-icon-share"></span> <span class="y-label">share</span> <span class="yotpo-icon yotpo-icon-seperator"></span> </span> <span class="sr-only" id="review-124729784">' Share Review by Jill T. on 9 Sep 2019 </span> <span class="share-options-wrapper"> <span role="list" class="share-options share-review"> <span role="listitem" data-social="facebook"> <span class="y-label yotpo-action"> <a class="social-link popup-link" 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vote-sum" aria-live="polite" aria-atomic="false" data-type="down">0</span> </div> <div class="footer-additional-actions"> <span class="y-label yotpo-review-date">09/09/19</span> </div> <div class="yotpo-clr"></div> </div> </div> <div class="yotpo-review yotpo-regular-box " data-review-id="69240452"> <div class="yotpo-header yotpo-verified-buyer "> <span class="yotpo-icon-profile yotpo-header-element pull-left"> <span class="yotpo-user-letter">P</span> <span class="yotpo-icon yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" data-target-container="yotpo-header"></span> </span> <div class="yotpo-header-element "> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">Paul M.</span> <div class="label-with-tooltip pull-left"> <span class="y-label yotpo-user-title yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" aria-describedby="69240452">Verified Buyer</span> </div> <div class="yotpo-clr"></div> <span class="yotpo-review-stars "> <span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="yotpo-icon yotpo-icon-star rating-star pull-left"></span><span class="sr-only" tabindex="0">5 star rating</span> </span> <div class="yotpo-clr"></div> </div> <div class="yotpo-header-element yotpo-header-actions "> <span class="y-label yotpo-review-date">09/20/18</span> </div> </div> <div class="yotpo-main "> <div class="content-title yotpo-font-bold"> I am glad I bought it </div> <div class="yotpo-clr"></div> <div class="yotpo-review-wrapper"> <span class=sr-only id="69240452-ada-summary-text">Review by Paul M. on 20 Sep 2018</span> <span class=sr-only id="69240452-ada-title-text">review stating I am glad I bought it</span> <div class="content-review" id="69240452"> It looks like the helmet from Spaceballs. But it’s comfortable, lightweight and has lots of ventilation </div> </div> <a class="product-link-wrapper " aria-label="Product Octal X" aria-hidden="true" tabindex="-1" href="https://yotpo.com/go/499ohn81" target="_blank" rel="nofollow"> <div data-product-id="48116908" class="y-label product-link"> On Octal X </div> </a> </div> <div class="yotpo-footer "> <div class="footer-actions"> <span class="yotpo-action" data-type="toggleFade" data-target="share-review" aria-labelledby="review-69240452" role="button" tabindex="0" aria-expanded="false"> <span class="yotpo-icon yotpo-icon-share"></span> <span class="y-label">share</span> <span class="yotpo-icon yotpo-icon-seperator"></span> </span> <span class="sr-only" id="review-69240452">' Share Review by Paul M. on 20 Sep 2018 </span> <span class="share-options-wrapper"> <span role="list" class="share-options share-review"> <span role="listitem" data-social="facebook"> <span class="y-label yotpo-action"> <a class="social-link popup-link" 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vote-sum" aria-live="polite" aria-atomic="false" data-type="up">1</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="down" role="button" aria-label="vote down Review by Paul M. on 20 Sep 2018" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-down"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="down">0</span> </div> <div class="footer-additional-actions"> <span class="y-label yotpo-review-date">09/20/18</span> </div> <div class="yotpo-clr"></div> </div> </div> <div class="yotpo-review yotpo-regular-box " data-review-id="69257355"> <div class="yotpo-header yotpo-verified-buyer "> <span class="yotpo-icon-profile yotpo-header-element pull-left"> <span class="yotpo-user-letter">M</span> <span class="yotpo-icon yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip" data-target-container="yotpo-header"></span> </span> <div class="yotpo-header-element 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yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip-question"></span> </span> <div class="yotpo-header-element"> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">Jeffrey O.</span> <div class="label-with-tooltip pull-left"> <span class="y-label yotpo-user-title yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip-question">Verified Reviewer</span> </div> <div class="yotpo-clr"></div> <div class="yotpo-clr"></div> </div> <div class="yotpo-header-element yotpo-header-actions"> <span class="y-label question-date">07/13/18</span> </div> </div> <div class="yotpo-main"> <div class="content-question yotpo-font-bold"> Q: what is the difference between this helmet and the octal x spin </div> <div class="yotpo-clr"></div> </div> <div class="yotpo-footer"> <div class="footer-actions"> <span class="yotpo-action" data-type="toggleFade" data-target=".yotpo-comments-box,.yotpo-show-more" role="button" tabindex="0"> <span class="yotpo-icon yotpo-icon-chat-bubble y-label"></span> <span class="yotpo-aux y-label">Answers (1)</span> </span> </div> <div class="yotpo-clr"></div> </div> <div class="no-border yotpo-comments-box visible"> <div class="yotpo-comment-box yotpo-comment " data-answer-id="2681917"> <div class="yotpo-header yotpo-store-owner "> <span class="yotpo-icon-profile yotpo-header-element pull-left "> <span class="yotpo-user-letter"> <span class="yotpo-icon yotpo-icon-store"></span> </span> <span class="yotpo-icon yotpo-icon-circle-checkmark yotpo-action-hover" data-type="toggleFade" data-target="yotpo-tool-tip-answer"></span> </span> <div class="yotpo-header-element"> <span class="y-label yotpo-user-name yotpo-font-bold pull-left">POC</span> </div> <div class="yotpo-header-element yotpo-header-actions"> <span class="y-label question-date">07/18/18</span> </div> </div> <div class="yotpo-main"> <div class="content-title yotpo-font-bold"> </div> <div class="content-question"> A: Hej Jake, This helmet will be exactly the same, it will not have the SPIN technology. Other than that, they have the same shell, same build, and same fit. </div> </div> <div class="yotpo-footer"> <div class="footer-actions"> </div> <div class="yotpo-helpful"> <span class="y-label label-helpful">Was this answer helpful?</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="up" role="button" aria-label="vote up Answer by POC on 18 Jul 2018" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-up"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="up">0</span> <div class="yotpo-icon-btn-small transparent-color-btn vote-btn" data-type="down" role="button" aria-label="vote down Answer by POC on 18 Jul 2018" tabindex="0"> <span class="yotpo-icon yotpo-icon-thumbs-down"></span> </div> <span class="y-label yotpo-sum vote-sum" aria-live="polite" aria-atomic="false" data-type="down">0</span> </div> <div class="footer-additional-actions"> <span class="y-label question-date">07/18/18</span> </div> <div class="yotpo-clr"></div> </div> </div> </div> </div> </div> </div> </div>

Size Guide

Size
Head Circumfrence
S (cm)
50-56
M (cm)
54-60
L (cm)
56-62

Measurement 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 chart here as a guide.