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HJC

HJC i71

DOT ECE 22.06

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Design Concept & Background

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HJC i71 is a high-performance Full Face helmet engineered by HJC to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.

Rider Profile & Intended Use

Helmet Category Full Face
Internal Fit Shape Intermediate Oval
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Where to buy

Price History

Product Concept & Specifications

HJC (South Korea)

Engineering & Technical Analysis

The HJC i71 represents a significant leap in lightweight helmet engineering by utilizing an advanced carbon fiber composite shell. This material choice drastically reduces overall mass compared to traditional fiberglass or polycarbonate constructions without compromising structural integrity, resulting in a weight of approximately 1380 grams for a medium size. The internal structure features a multi-density EPS liner designed to absorb impact energy efficiently across various collision vectors while maintaining a consistent fit profile.

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

[MATR.SHEL] Shell Construction Carbon Fiber Composite Shell with EPS Liner Outer structural material
[PHYS.MASS] Measured Weight 1380g (3.04) Approximate medium size weight
[COVG.YEAR] Warranty 1 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case All-round Sport Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT, ECE 22.06 Certified safety standard
[SYS.PROT] Rotational Protection Standard EPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Micro-adjustable YKK Buckle Chin strap buckle style

Acoustics & Aerodynamics

82 dB
Acoustics
9 /10
Ventilation

Quiet Index: Superior sound damping and isolated ear cavity structures. High flow channels optimize high-velocity dynamic ventilation.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration N/A Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

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