237.23 USD (35,200 JPY)
Delivery Information
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Size Chart For Helmet
How to measure the size of your head
First, measure the circumference of your head with a measuring tape.
Measure from the highest point of your forehead, just above your eyebrows, horizontally backwards to the highest point of the back of your head and around.
Based on the measurement, choose the size from the table below.
However, unlike hats, helmets cannot be sized by head circumference alone.
Also, helmets of the same manufacturer may feel different even if they are the same size depending on the model.

Ordering Size | XS | S | M | L | XL | 2XL |
Head Measurement (cm) | 53 - 54 cm | 55 - 56 cm | 57 - 58 cm | 59 - 60 cm | 61 - 62 cm | 63 - 64 cm |
* This universal size chart is for reference only. Sizes vary by manufacturer and product.
Product detail
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color matte black
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color type solid
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Helmet SG mark ○
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Helmet PSC mark ○
[Color] Matte Black
・SG/PCS standard acquired
・Double Visor System
・UV protection shield
・Washable interior
・3D Fit Inner
・CoolnessFit
・Slider buckle
・Cable Holder
**Conventional inner visor cannot be attached to the G-FORCE SS series.Please select the Long Inner Visor (typeC) for replacement.
Please check the instruction manual of your washing machine, detergent before washing, and do so at your own risk.
*There may be changes in product specifications due to the manufacturer's reasons.
*Image may contain other colors and type.
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■It is both strong and reduces fatigue.That's why it's safe.
WINS Japan believes that "reducing the burden on your neck and reducing fatigue so that you can concentrate on riding" will lead to greater safety.
In order to make stronger helmets, thermosetting prepreg fiber sheets are used, in which the fiberglass material is pre-infused with resin, allowing for more fine-tuning of materials and lamination methods for each part.
We focused on making a light and strong helmet
■Materials and Manufacturing Methods
[Prepreg material adopted
The commonly known manufacturing method is to put the fiber material into a mold and then pour resin into that mold.
For helmets that protect the head, we believe that materials and lamination methods need to be more finely tuned for each part. To achieve this, we use thermosetting prepreg fiber sheets in which resin has been infiltrated into the fiber material in advance.
[Pressed prepreg fiber sheet*]
If the resin is soaked into the fiber and pressed as it is, some parts will be thicker and some thinner.
With this material, it is difficult to remove excess resin, and strength and weight are not consistent.
In the case of prepreg fiber sheets, the lamination method can be finely tuned for each part of the helmet to optimize the balance between strength and weight.
*A material in which the direction and position of the fibers are precisely controlled, layered in layers for each area, and impregnated with resin.
[Strong and lightweight dry fiber shell]
The dry fiber shell is a lightweight shell with improved impact resistance and dispersibility by applying high pressure evenly during pressing to stabilize the thickness without leaving excess resin in the shell and without compromising safety.
[Prepreg Inner Pressure Vacuum Air Bag method]
PPVA (Prepreg Inner Pressure Vacuum Air Bag) manufacturing method
Using our proprietary PPVA manufacturing method, the pre-preg sheets are pressurized from the inside of the cap using the air bag method and depressurized from the outside using the vacuum pulling method, while the pre-laminated prepreg sheets are heated and cured by bringing them close to a vacuum and removing unnecessary resin and air bubbles to the utmost limit.
This process produces a cap that is lightweight, strong, and durable.
For comfort and ease of use
■Special Features
Interior designed for a comfortable, snug fit
WINS helmets are designed and built for Asians.
There are a number of particulars in the interior padding that is attached to that helmet.
・Comfortable materials for the best wearing comfort
Dual construction with a 3D main pad section designed to follow the shape of the cheek and an inside section for improved fit.
We have adopted more comfortable materials and focused on a comfortable headband that wraps around the wearer to reduce fatigue even on long-distance tours.
In addition, to avoid discomfort when wearing eyeglasses, there is room for eyeglass temples to fit, reducing pressure.
・Further innovations to better fit the cheeks
Absorb Control Hole Sponge
The cheek area has a dual structure with a 3D main pad section designed to follow any shape of cheek and an inside section for improved fit.
Furthermore, by drilling holes in the optimal position and size in the sponge inside the pad, we have achieved a "wrap-around interior" that could not be achieved by 3D cutting alone.
[Fine adjustments can be made to the fit]
・Adjustable cheek pads
The shape of the head varies from person to person.
The customizable parts (sold separately) can be used to make fine adjustments to areas of concern, such as "the gap at the top of the head" or "the pain in the ear when worn for long periods of time."
The cheek pads can also be customized by removing and cutting the sponges.
■Adjust the helmet to fit you
*There are limits to how much adjustment can be made.
■Reduces pressure from the temples of glasses and sunglasses!
For those who wear glasses and want to use their favorite sunglasses together
The upper end of the cheek pad where the crane of the glasses touches is shaped like a sponge to provide more space and reduce the pressure caused by the crane of the glasses.
■All washable interior pads!
All the interior pads are washable, so you can use it cleanly anytime.
The interior pad is made of the cool material "Super Coolness Fit", so you can use it comfortably even in summer.
■Smooth installation of intercoms!
Equipped with speaker holes for smooth attachment of helmet speakers and intercom cables, as well as cheek pads with cable threading holes.
■Aeroform
G-FORCE SS is designed in an aerodynamic shape, which smoothes the airflow when riding and reduces wind-induced pushing and lifting.
■Large ventilation ■
In addition, it is equipped with a large ventilation to improve comfort in a helmet by taking in a lot of air.
In addition, the ventilation can be opened, half-opened, or closed in two adjustable positions.
Shield Dual Action Closing
■High airtightness and quietness
The G-FORCE SS's shield gear features dual-action closing, which opens and closes the shield in five stages.
The shield base itself moves according to the timing of opening and closing the shield, and pulls the shield toward you.
The fourth gear is just slightly open while the fifth gear is completely airtight.
Shield is pulled to the wiper molding of the helmet side to realize super tight seal.
High quietness and protection from wind, rain and dust.
Reduced burden for city riding and touring!
■Wide field of view even with a full face!
G-FORCE SS has a shield with a wide-view design, which provides a wide field of vision even on a full face, and reduces stress caused by a narrow field of vision.
In addition, FOGWIN is also compatible with Jet (F-03), so you can rest assured on rainy and cold days.
Great for city riding and touring!
■Double visor
Just slide the lever on the side to quickly insert and remove the inner visor.
You can get the effect of sunglasses in strong sunlight or sudden backlight.
5mm longer than the conventional product
■Uses inner visor Type C
The length of the inner visor is longer than that of the conventional product, covering a larger area of the field of vision and reducing light entering through gaps.
By adding a wind path inside the helmet
■Comfortable inside the helmet
Air rails are engraved in the interior EPS to improve comfort by efficiently distributing air taken in from ventilation to the whole helmet.
*FOGWIN is a high performance anti-fog sheet which is also used for racing helmets.
Points of Attention
* The helmets sold on this site are based on the Japanese safety standard.
We are not responsible for accidents, damage, injury, or any other related matters as a result of purchasing this product.