From its In Form™ Fit System that lets you customize the fit to its adjustable venting that provides airflow when you need it, the Ratio™ helmet lets you make all the adjustments you need to stay comfortable on the mountain.
Ratio Helmet
From its In Form™ Fit System that lets you customize the fit to its adjustable venting that provides airflow when you need it, the Ratio™ helmet lets you make all the adjustments you need to stay comfortable on the mountain.
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Size Guide
HOW TO MEASURE YOUR SIZE
Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide.
| ADULT SUPER FIT SIZE | CIRCUMFERENCE |
|---|---|
| S | 52 - 55.5 cm |
| M | 55.5 - 59 cm |
| L | 59 - 62.5 cm |
| XL | 62.5 - 65 cm |
Note: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering vision. Once you’ve got the right size, you can adjust the fit.
HOW TO ADJUST THE FIT
Step 1: Adjust the fit system at the rear of the helmet for a snug, secure fit. Some helmets also include a vertical tuning feature that allows you to adjust the fore/aft tilt, for optimal positioning on your head.
Step 2: Adjust the straps so that they sit just below the earlobes.
Step 3: Adjust the buckle so that it rests against the back of the jaw/throat.
Step 4: Adjust the interior pads if needed.
Step 5: Check the fit to make sure helmet is comfortable and secure. It should not roll forward or back, or be able to slide off.
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Details
The Ratio™ is a no-nonsense helmet that boasts features found on premium helmets at a more accessible price.
Beneath the sleek silhouette, you'll find the adjustability of an In Form fit system and Thermostat Control adjustable venting. Meanwhile, the Ratio helmet is also fully compatibility with aftermarket audio systems by Outdoor Tech so you can listen to your favorite tunes on the mountain.
Specs
| Construction |
Hard Shell construction
EPS foam liner
|
|---|---|
| Ventilation |
Thermostat Control™ adjustable venting - allows custom-tuning of airflow instantly with a simple, low-profile control button on the outside of the helmet
Stack Vent™ Technology
|
| Fit System |
In Form™ Fit System - easy to dial in a custom fit in seconds, even with gloves on. Ergo-friendly dial at the base of the helmet that provides up to 6cm of adjustment and enhanced stability
|
| Product Weight |
590g (size Medium)
|
| Electronics Compatibility |
Compatible with aftermarket Giro audio systems by Outdoor Tech
|
| Certification |
CE EN1077
|
| Highlights |
Seamless Compatibility with all Giro goggles
|
Features
HARD SHELL CONSTRUCTION
Hard Shell Construction produces great helmets at a great price. A rugged outer shell is molded and then attached to the EPS foam liner.
SEAMLESS COMPATIBILITY
For optimal performance of both helmets and goggles, Giro products are designed to work together, ensuring a seamless interface between helmet and goggle for an exceptional fit and dependable, worry-free function.
STACK VENT TECHNOLOGY
Our Stack Vent was developed based on research showing the majority of warm air that can cause fogging comes from the goggle's center top vent. Aligning the Stack Vent in the helmet with the center vent of the goggle helps keep it clear and fog-free.
THERMOSTAT CONTROL
Thermostat Control Adjustable Venting allows you to custom-tune airflow instantly with a simple, low profile control button on the outside of the helmet. No other system is faster or easier to adjust, and nothing is more effective at keeping you comfortable.
VERTICAL TUNING
Accommodates different goggles and head shapes for a custom fit free of gaper gap
IN FORM FIT SYSTEM
The In Form Fit System makes it easy to dial in a custom fit in seconds—even with gloves on. An ergo-friendly dial at the base of the helmet provides up to 6cm of adjustment and enhanced stability.
Complete the Kit
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