Giro Ionos Road Racing Helmet

Giro Ionos Road Racing Helmet

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Technical Details

• Lightweight, performance-oriented bike helmet with a winning combination of strength and ventilation
• Recommended for road, mtb xc, cyclocross and track racing, triathlons, and enthusiast road riding
• In-mold composite sub-frame construction (ICS) with an EPS liner and polycarbonate shell
• Roc Loc 5 fit system with a ratcheting, micro-adjusting dial for a custom fit
• 21 Wind Tunnel vents and internal channeling keeps air flowing; one-year warranty

Item Specifications

The Ionos Racing Helmet from Giro is built for exceptional ventilation and strength to keep high-performance bikers protected and comfortable. The Ionos features Giro's proprietary in-mold composite sub-frame (I.C.S.) with a fused polycarbonate shell and EPS liner that provides the strength to support the helmet's 21 massive vents. These vents couple with an intricate network of internal channels to create Giro's Wind Tunnel ventilation system that effectively exhausts hot, stale air as you ride. Finally, the Roc Loc 5 fit system offers a custom-fit from top to bottom thanks to a micro-adjusting dial that cradles your head. Built for serious cyclists, the Ionos has been long time favorite of tour champions Lance Armstrong and Alberto Contador.

Key Features:

• In-Mold Composite Sub-Frame: Giro's In-mold composite Sub-frame features a composite skeleton fused into the helmet's EPS liner. Visible on the bridges between vents, this series of composite plates is directionally tuned to provide structural support, impact dispersion, and penetration resistance, allowing for large air vents without compromising rider protection.
• Wind Tunnel Ventilation: Giro's proprietary Wind Tunnel ventilation system combines active vents with internal exhaust channels designed to thrust cool, fresh air over and around the rider's head, while forcing heat and stale air out.
• Roc Loc 5 Fit System: Thanks to a ratcheting, micro-adjusting dial, Roc Loc 5 allows you to dial-in the helmet's fit tension with a simple, two-finger twist of the Micro Dial--all while wearing the helmet. Change the helmet's vertical position for an even finer-tuned fit with the three-position bracket that offers 15-millimeters of up/down movement. Like the Micro Dial, this system can be adjusted without removing the helmet. Meanwhile, Dual Pod panels firmly grasp the back of your head while comfortably cradling the occipital lobe. Finally, Strap Baskets keep your helmet straps right where you need them.
• X-Static Padding: X-Static pads provide comfort and anti-microbial properties to help keep the helmet fresher for longer. The pads are also machine washable.

The coolest helmet in the peleton - and features the new Roc Loc 5 fit system. After more than ten years of refinement, this ground-breaking fit system provides an entirely unique use experience with an unmatched level of comfort, stability, adjustability and weight savings. With Roc Loc 5, you can easily dial-in both fit tension and adjust vertical position with a single hand. Just twist the dial for a tighter feel on tough terrain, then back it off a notch and relax across the flats or a warm climb. Even with these remarkable features, Roc Loc 5 is still 40-percent lighter than its popular predecessor, Roc Loc 4. Roc Loc 5 systems is: 1) Micro Dial. The heart of the Roc Loc 5 is this ratcheting, micro-adjusting dial. A simple, two-finger twist of the Micro Dial opens or closes the retention system and each click is audible. 2) Three-Position Vertical Fit - It's never been easier to change vertical positions and fine-tune fit. We incorporated a three-position bracket that features 15-millimeters of precise up/down movement. Like the Micro Dial, this system can be adjusted without removing the helmet. 3) Carefully crafted ergonomic arms are shaped to be as comfortable as possible, yet work flawlessly with Giro eyewear (what we call Super Fit engineering). 4) Dual Pods - These two panels are designed to firmly grasp the back of your head while comfortably cradling the occipital lobe. Strap management - with Roc Loc 5, your helmet straps are woven through the fit system, so they are always in the perfect position. Complex Internal Design - Dozens of small parts work together seamlessly to provide exceptionally user-friendly adjustment. Minimal and Light, yet Strong - Although this fit system is 40% lighter than its predecessor, it's much stronger. In testing, Roc Loc 5 performs flawlessly, even after 6,600 cycles (equivalent to 3 years of riding with 3 round trips per day).

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