Arai · XD-5
Arai XD-5 Discovery Blue
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
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.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
Arai 标志性的“Perfect Fit”系统；通常符合标准尺寸，采用半球形设计，非常适合 Intermediate Oval 头型，但某些 Long Oval 头型可能需要使用加长颊垫。
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 is our business"
凭借 Arai XD-5 Discovery Blue，在不妥协的安全与探险风格的完美融合中征服任何地形。这款双运动（dual-sport）杰作配备了 Arai 传奇的 MIPS® 技术，提供卓越的冲击保护，确保您在铺装公路和崎岖越野小径上都能安心骑行。流线型的空气动力学外壳采用醒目的蓝色涂装，可减少风噪和阻力，让您在减少疲劳的同时骑行更久。XD-5 配备先进的通风通道，在剧烈的爬坡过程中为您保持凉爽，同时集成的遮阳镜可提供即时的遮荫。无论是在狭窄的单行道穿梭还是在开阔的道路上巡航，精准的 Intermediate Oval 佩戴尺寸都能提供无与伦比的舒适度和稳定性。体验定义终极探险头盔的技术创新与大胆美学的完美结合。
Arai XD-5 Discovery Blue represents an empirical engineering balance between aerodynamic stability and high-absorption cranial protection. Developed under Arai's strict quality assurance standards in Japan, the shell profile is precision-molded to minimize high-velocity turbulent drag while maintaining comprehensive multi-axis impact attenuation.
Within the Adventure/Dual Sport 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:
Rider Profile & Intended Use
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| 零售商 | 价格 | Availability | |
|---|---|---|---|
| Amazon (US) | 查看实时价格 | 在网站上查看 | 查看价格 → |
价格历史与趋势
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Product Concept & Specifications
Arai (Japan)Engineering & Biomechanical Safety Analysis
XD-5 采用 Arai 专利的多密度 EPS 内衬和针对探险骑行动态优化的单壳结构。其空气动力学外壳设计最大限度地减少了风buff影响，而集成的遮阳镜和下巴帘在不影响通风气流的情况下有效阻隔杂物。
The Arai XD-5 Discovery Blue is engineered as a high-integrity Adventure/Dual Sport protective system, utilizing a structural shell constructed from PB-cLc2. 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, Snell M2020 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.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Regional Legality & Compliance
Meets DOT and Snell M2020 standards for street use.
Compliant with Canadian motor vehicle safety regulations.
Regional Legality Guidance
Certification Documents & References
Interactive Size & Fit Finder
Arai 标志性的“Perfect Fit”系统；通常符合标准尺寸，采用半球形设计，非常适合 Intermediate Oval 头型，但某些 Long Oval 头型可能需要使用加长颊垫。
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.
Geo Pricing & Availability
| Country | Price | Availability | Source | Updated |
|---|---|---|---|---|
| US | 839.95 USD | In Stock | Official | 2024-05-22 |
| CA | 1099.99 CAD | In Stock | Retailer | 2024-05-22 |
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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.