Arai · Arai XD
Arai XD-5
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's 5 shell sizes ensure the most precise external-to-internal proportion. The FCS cheek pads can be custom tuned by an Arai dealer for a bespoke fit.
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"
Arai XD-5 是一款高端双用途头盔，采用 Arai 传奇的手工成型 PB-SNC2 外壳。其配备可拆卸帽檐、VAS 面屏，并提供 5 种外壳尺寸，为探险骑行类别带来极为精准的贴合度。
Arai XD-5 是 Arai 打造的高结构强度 Helm 安全防护装备，其外壳采用 玻璃纤维强化复合盔体 制造。多重复合层叠结构能够在发生撞击时实现阶梯式动能吸附与扩散，有效将冲击载荷分散到外层壳体表面，最大程度减缓冲击能量向内部多重密度 EPS 缓冲层的传导。
通过严苛的 ECE 22.06 / DOT 安全认证标准，该盔体经过严格的直线减速与倾斜角冲击测试，有效削减引发弥漫性轴索损伤的旋转加速度。关于跌落测试初速度与撞击砧板几何规范的深度解读，请查阅我们的工程指南：ECE 22.06 对比 DOT 与 SNELL 头盔安全标准指南。
内衬工效学基于 中椭圆型（Intermediate Oval） 颅骨结构进行三维塑形，消除顶骨边缘的局部压痛点，同时保持颧骨弓部位的均匀贴合压感。如需了解佩戴稳定性与内衬磨合指导，请参考我们的 头型分类与颅骨几何贴合指南 与 脸颊内衬密度与贴合磨合规范。
在时速 100 公里/小时巡航工况下，舱内风噪值实测约为 92.5 dB，这得益于内嵌 EPS 风道导流与层流外形设计。若需进一步分析不同壳体材质在长期紫外线及热疲劳下的力学耐久表现，请参考我们的 碳纤维、玻璃纤维与聚碳酸酯复合盔体材质对比。
车辆协同效应与骑行场景： 兼顾下压力平衡与前额高负压进气，针对运动街车与公路巡航骑行姿态进行了针对性调校。整盔重量约为 1700 克，拥有居中的质量重心分布，显著减轻长时间高速骑行造成的颈椎肌群疲劳。欢迎查阅我们的 摩托车车型工程兼容性目录，获取匹配风挡与坐姿协同建议。
Arai XD-5 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
ℹ️ Helmetsan 是一个独立的摩托车安全与决策引擎。当您查看价格或通过零售商链接购买时，Helmetsan 可能会获得联盟佣金，且不会向您收取额外费用。
Product Concept & Specifications
Arai (Japan)Engineering & Biomechanical Safety Analysis
The Arai XD-5 is engineered as a high-integrity Adventure/Dual Sport protective system, utilizing a structural shell constructed from PB-SNC2 (Super Fiber, Organic Fiber, Fiberglass). 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, 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
Interactive Size & Fit Finder
Arai's 5 shell sizes ensure the most precise external-to-internal proportion. The FCS cheek pads can be custom tuned by an Arai dealer for a bespoke fit.
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.
Part numbers
| Product style | MFR. product # | SKU | Availability |
|---|---|---|---|
| Solid Frost Black / MD | — |
ARAI-XD5-FBK-MD | in_stock |
Geo Pricing & Availability
| Country | Price | Availability | Source | Updated |
|---|---|---|---|---|
| US | 739.95 USD | in_stock | authorized_distributor | 2026-02-20 |
| EU | 699 EUR | in_stock | authorized_distributor | 2026-02-20 |
| IN | 74990 INR | import_only | grey_market | 2026-02-20 |
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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.