From the top of the podium of the Tour de France, straight to your head comes Giro's Ionos. Built to the exacting demands of ProTour riders, the Ionos offers premium cooling, chic style and maximum protection. Giro's 21 massive Wind Tunnel vents keep you cool and dry, while the In-Mold Composite Sub Frame provides massive amounts of protection when you need it most. Plus, the Ionos uses Giro's top-notch Roc Loc 5 system for a supremely comfortable and secure fit.
- Small = 51-55cm
- Medium = 55-59cm
- Large = 59-63cm
A) Micro Dial - A ratcheting dial that’s simply twisted to tighten and loosen the fit.
B) Three-Position Vertical Fit - Lets you raise and lower the Roc Loc system to the perfect position.
C) Ergonomic Arms - Minimal shape fits comfortably and accommodates eyewear.
D) Dual Pods – Supportive, minimal panels that cradle your head for the utmost in comfort and safety.
E) Strap Management - The straps (not shown) are woven through the fit system to always remain in the right place.
Thanks to 21 large vents and Giro's Wind Tunnel technology, channels inside the Ionos that force air in and out, this lid is 15% cooler than Giro's previous best-vented lid. In fact, tests prove this is the first helmet to keep riders cooler than riding bareheaded, even on the toughest climbs and hottest days!
Weight: 9.7 ounces
Watch a video of Levi Leipheimer talking about Giro’s Roc Loc 5 fit system.
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