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Giro Synthe helmet

  • By Caley Fretz
  • Published Jun. 24, 2014
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The Therminator at the 30-degree angle that Giro uses to test its road helmets. Photo: Caley Fretz | VeloNews.com

The Therminator at the 30-degree angle that Giro uses to test its road helmets. Photo: Caley Fretz | VeloNews.com

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