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Giro - Phase MTB Helmet

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Giro - Phase MTB Helmet

Availability: In stock

Stock #: 767U-

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First and foremost, a mountain bike helmet should be comfortable and durable. The Phase™ is true to the core—light, cool and durable enough to handle even the most daunting climbs and rock-strewn ribbons of singletrack. With the easy fit and adjustability of Roc Loc® 5 and the comfort of Super Fit™ sizing, it’s a top performer for riders looking for a low-profile helmet at a great price.


  • ACU DIAL™ 2: Giro's Acu Dial 2 fit system offers the convenience of single-handed adjustment, plus variable-fit belt anchor points providing a brilliant fit and feel. Acu Dial 2 is slim, durable, and even ponytail-compatible.
  • SUPER FIT™ ENGINEERING: Giro's proprietary Super Fit™ sizing system is based on “human scale factors” data and over 25 years of handcrafting helmets. By creating helmet molds in up to 4 adult sizes to match the human body’s form, Super Fit™ comfortably and securely fits riders, and feels like they are custom made just for you.


  • Construction: Snap-fit 2 visor, In-mold EPS liner, polycarbonate shell
  • Fit System: Roc Loc 5 fit system
  • Ventilation: 27 vents

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Product Videos

  • Giro: The Phase Helmet