By combining state-of-the-art engineering, manufacturing, and materials into a sleek aerodynamic chassis, the EXO-ST1400 is one of the lightest helmets in its class, weighing in at 1,383 grams (3.05 lbs). The ST1400 also offers the ride-specific versatility of an integrated SpeedView® Sun Visor, AirFit® custom inflation system, Comm-Ready convenience, and Aero-Tuned Ventilation.
Shell:
Resin-infused TCT-U™ 3K carbon fiber shell composite weave provides aircraft-grade impact dispersal properties.
CAD-refined aerodynamics resulting in a streamlined profile and balanced footprint minimizing both lift and turbulence for a smoother, quieter, and more stable ride.
Comfort:
Aero-tuned ventilation comprised of a venturi-effect channeling system linked via adjustable dual ram-air intakes, and spoiler integrated exhaust. The result is high velocity airflow from front to back that pulls heat and humidity up and out for a cool, dry ride.
Airfit® inflation adjustment system provides user-defined fit customization not only for comfort but for specific riding situations ranging from spirited canyon rides to long distance tours.
Fully removable, washable, and replaceable Kwikwick™ III anti-microbial interior absorbs and dissipates odor and humidity.
Comm-Ready speaker pockets allow for easily installation of your favorite BlueTooth® communication system speakers.
KwikFit® 3D sculpted cheek pads accommodate eyeglasses.
Large eye port design creates a superior horizontal and vertical visual field.
Distortion free, no-fog Everclear™ internal Speedview® sun visor features 99% protection from UVA and UVB rays.
Vision:
Everclear™ no-fog treated face shield with integrated center locking mechanism ensures a secure and evenly distributed seal across the eye port.
Additional Pinlock® MaxVision shield and Pinlock® anti-fog insert included
Adjustable chin bar vent intake redirects airflow to the interior surface of the shield, reducing fog build-up.
Ellip-Tec® II ratchet system featuring a 2-axis movement pulls the shield firmly into the eye port gasket for maximum seal while a preset “City Position” adjustment provides added airflow for stop-and-go city riding.
Versatility:
Emergency quick-release cheek pad system.
Integrated reflective piping. (cheek pads)
Included breath deflector and aero skirt. (chin curtain)
Safety:
Weight: ± 1,383 grams / 3.05 lbs (size medium)
Sizes: XS-2XL
3-Shell sizes for a precision fit
DOT FMVSS No. 218 Certified/ECE Approved
5-Year warranty
HELMET SIZING CHART
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| SIZE |
INCHES |
CM |
HAT SIZE |
| Small |
21 5/8 - 22 |
55 - 56 |
6 7/8 - 7 |
| Medium |
22 7/16 - 22 3/4 |
57 - 58 |
7 1/8 - 7 1/4 |
| Large |
23 1/8 - 23 5/8 |
59 - 60 |
7 3/8 - 7 1/2 |
| X-Large |
24 - 24 3/8 |
61 - 62 |
7 5/8 - 7 3/4 |
| 2X-Large |
24 3/4 - 25 3/16 |
63 - 64 |
7 7/8 - 8 |
Before You Select a Size: Helmet-Fit Facts
A helmet is one of the most important pieces of riding gear you will choose, and the size printed on the label is only a starting point. Head circumference, head shape, crown contact, cheek-pad pressure and the retention system all affect whether a helmet fits correctly. Two helmets marked the same size can fit very differently—even within the same brand.
- Measure around the widest part of your head, keeping the tape level and approximately one inch above your eyebrows.
- A new helmet should feel evenly snug around the entire head without sharp or painful pressure points.
- When you move the helmet gently from side to side, your skin should move with the liner rather than the helmet sliding independently.
- Fasten the retention system and confirm that the helmet cannot roll forward or lift off the head.
- Wear the helmet for several minutes before deciding. Comfort padding may settle with use, but an incorrect shell shape or painful pressure point is unlikely to be solved by choosing blindly.
Why Come to Eagle Leather for a Helmet Fitting?
Our staff is trained to help with helmet fitting and can help you compare head shape, size, pressure points and retention across different models. Inventory changes daily, but Eagle Leather consistently carries many hundreds of helmets—often approaching 1,000 units—across half-shell, open-face, modular, adventure and full-face styles. That selection gives you the opportunity to compare brands and internal shapes instead of relying on a size label alone.
For such an important piece of riding gear, we encourage you to visit Eagle Leather for an in-person fitting before selecting a size without trying the helmet on.
