Global Helmet Intelligence Platform

HJC · RPHA 71

RPHA 71 Matte Black

技术规格已验证 Touring DOT, ECE 22.06 PIM Evo 1474g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category 旅行骑行
Certifications DOT, ECE 22.06
Measured Weight 1474 g
Shell Material PIM Evo
Head Shape Fit Intermediate Oval
Retention System Double D-Ring
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ ECE 22.06
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 4/5 Stars (SHARP UK)
Retention Mechanism Double D-Ring
Emergency Release System Not specified

Safety standards compliance is based on official manufacturer documentation and public safety laboratory test results. Always verify regional compliance labels on the physical helmet prior to use.

FIT & SIZING

Verified Fit & Sizing Guide

Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.

Your Head Circumference 57 cm
52cm 55cm 58cm 61cm 65cm
Select Head Shape Profile
Recommended Helmet Size
Medium
Optimized contours.
Perfect for standard intermediate head profiles.

专为旅行设计,配备加长颊垫和略大的内部空间;适合大多数头型,但在极小的头型上可能会感觉松动。

How to measure

Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.

Design Concept & Background

"Safety First"

体验 HJC RPHA 71 Matte Black:融合韩国 🇰🇷 工艺与 RapidFire II 遮阳镜更换系统,配备 2D 平面赛道遮阳镜和双重锁定机制,并搭载 ACS 高级通道通风系统和 Multicool 抗细菌温度调节内衬。是追求极致安全与气动声学舒适度的骑士的完美选择。

RPHA 71 Matte Black represents an empirical engineering balance between aerodynamic stability and high-absorption cranial protection. Developed under HJC's strict quality assurance standards in South Korea, the shell profile is precision-molded to minimize high-velocity turbulent drag while maintaining comprehensive multi-axis impact attenuation.

Within the Touring segment, ergonomic weight distribution and acoustic insulation are paramount. The chassis geometry is tailored to distribute mass directly above the cervical pivot axis, counteracting high-speed buffeting and minimizing long-distance rider fatigue. Inspect the verified laboratory telemetry and structural analysis below for detailed performance parameters.

Key Highlights:

PIM Evo 外壳结构 360° 后部通风 (RRV) 系统 通过 ECE 22.06 和 DOT 认证 吸湿排汗内衬 中等椭圆形头型 空气动力学外壳设计 可调节内衬

Rider Profile & Intended Use

Riding Style 旅行骑行
Helmet Category 旅行骑行
Internal Fit Shape Intermediate Oval
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Product Concept & Specifications

HJC (South Korea)

Engineering & Biomechanical Safety Analysis

采用 Premium Integrated Matrix (P.I.M. Plus) 碳纤维与碳纤维玻璃混合织物外壳结构,搭配 RapidFire II 遮阳镜更换系统(含 2D 平面赛道遮阳镜和双重锁定机制)。内衬采用 ACS 高级通道通风系统和 Multicool 抗细菌温度调节内衬,并预留扬声器开口,可无缝集成蓝牙通讯系统。

The RPHA 71 Matte Black is engineered as a high-integrity Touring protective system, utilizing a structural shell constructed from PIM Evo. This structural layup is engineered to provide progressive kinetic energy dissipation during impact deceleration, distributing localized shock across outer lamina layers while minimizing deformation transfer into the internal multi-density EPS liner.

Certified to DOT, ECE 22.06 protocols, the architecture is subjected to rigorous linear deceleration limits and oblique impact evaluations to mitigate rotational acceleration forces associated with diffuse axonal injury. For a deeper breakdown of rotational thresholds and impact testing speeds, consult our ECE 22.06 vs DOT vs SNELL engineering benchmark.

Internal geometry follows a Intermediate Oval cranial profile, designed to mitigate focal pressure hot spots across the parietal ridges while maintaining uniform radial clamping pressure along the zygomatic arch. Riders seeking optimal retention stability and break-in guidance should review the cranial aspect ratios and head shape guide as well as our 3D cheek pad density protocol.

Shell composite integrity and acoustic sealing are further optimized through channelized EPS porting and aerodynamic laminar profiling. To learn how shell composites resist stress cracking under prolonged environmental cycling, inspect the composite material comparative matrix.

Fit & Shell Structure

Intermediate Oval Shape

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

外壳结构 PIM Evo 外部结构材料
Measured Weight 1474 g (3.25) 中号尺寸的大约重量
Warranty 2 Years 制造商保障期限
主要用途 旅行骑行 优化的骑行姿态

Safety & Certifications

认证 ECE 22.06 经认证的安全标准
Rotational Protection Yes (Rotational Mitigation) 减轻旋转冲击
紧急释放 Not specified 脸颊垫快速拆卸
固定带 Double D-Ring 下巴带扣类型
SHARP 碰撞评级 4/5 SHARP UK 冲击测试成绩已验证

Acoustics & Aerodynamics

噪音水平 78 dB 实测高速风噪
通风 9/10 气流性能评级
风洞测试 Not specified 优化的外壳空气动力学
Pinlock 防雾 未包含 防雾镜片内衬

Technology & Convenience

通信设备集成 Generic Speaker Cutouts 对讲机开孔可用性
适合佩戴眼镜 Not specified 内衬眼镜凹槽
面罩系统 Not verified 一体式下拉式遮阳镜
可拆卸内衬 Not verified 可清洗内衬模块

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Meets Federal Motor Vehicle Safety Standard 218.

🌐 CA Street Legal
Required: DOT, ECE 22.06

Compliant with regional safety standards for road use.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Meets Federal Motor Vehicle Safety Standard 218.

CA

Status: Street Legal

Required: DOT, ECE 22.06

Compliant with regional safety standards for road use.

Certification Documents & References

  • DOT (US) - Department of Transportation - Reference
  • ECE 22.06 (EU) - Economic Commission for Europe - Reference
  • Snell M2015 (US) - Snell Memorial Foundation - Reference
  • JIS T 8133:2015 (JP) - Japanese Industrial Standard - Reference

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Data Confidence & Verification Provenance

Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.

Manufacturer Source
HJC Official Specification
Safety Testing Agency
DOT, ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-09