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Product Details

H-Sonic is enhanced conceptual geometric design with maximum air experience, lightweight, and durable reinforcement construction. With biggest vent opening as possible, H-Sonic is designed and engineered to intake much air as possible. In order to support its big vent structure H-Sonic is double in-molded with internal skeletal frame for durability and security. With H-Sonic’s big ventilated effect, you are able experience maximum air intake with exhilarating feel of the air during the ride.

  • Technical Features

    1. Wind Tunnel Tested

      HJC is only one of very few helmet companies who are facilitated with its own state of the art wind tunnel testing laboratory to test the aerodynamics, ventilation, noise, and more. Across from technical adaptation of motorcycle race technology to high-end road cycle helmets, HJC wind tunnel test lab measures the constant force within the riding condition.

    2. Reflective

      HJC helmet gives special attention to safety of riders during afterhours. Therefore we have applied highly visible reflective adhesives on the helmet. Since the helmet stands considerably high above the road, it is a good way to emit awareness with reflectivity.

    3. Internal Reinforcement Structure

      Embedded within the EPS is the engineered skeletal frame that is designed to bind the structure of the helmet together while at possible impact. Skeletal frame is not only to holds the helmet together while impact but also works as added impact support reinforcement making the helmet more rigid.

    4. Advanced Air Channel System

      Air channel is an optimal air passage that are shaped and designed within the inner surface of the helmet for maximum internal airflow. Depending on the riders speed, certain amount of air will travel inside the helmet by the frontal intake vent and through the inner air passage and out to exhaust vent. Optimal circulation of the air through the air channel helps to cool the head while in heated riding condition.

    5. Feather Light

      HJC Road Cycle Helmets are designed and engineered through precision measures to have lightest weight construction as possible. Thickness and density, placement and shapes, materials bits and parts all plays a part in having lightest weight construction.

    6. In-Mold Construction

      In-Mold Construction is method of binding the EPS together with the outer polycarbonate shell to have more conformed strength in structure. By binding the shell and EPS together helps protection with compact reinforcement and gives clean finish appeal to the product.

    7. Polygiene

      All helmets are integrated with special Polygiene Silver Salt (Silver Chloride) particles. Polygiene is an antimicrobial property, and this natural ingredient has the sufficient ability to eliminate bacteria and fungi growth. Polygiene prevents the growth of odor-causing bacteria and fungi at the source, permanently.

  • Specifications

    Wind Tunnel Tested
    Double In-mold Design
    Reinforcement Structure
    Advanced Air Channel System
    Goggle Mount
    3D fit system
    24 Ventilations
    Feather Light 210g (±10)
    CE EN 1078 Certificate
    KC Certificate

    Sizing Guide

    • XS / S
    • 54-56 cm
    • 21.2-22”
    • M / L
    • 57-59 cm
    • 22.4-23.2”
    • XL / XXL
    • 60-63 cm
    • 23.6-24.8”