Alpinestars · SM5
SM5 Course Blue
核心参数一览
权威安全速览
该头盔认证标准与全球权威碰撞测试对照解析。
安全标准符合性基于制造商官方文件及独立实验室公开碰撞测试。使用前请核实实物头盔上的区域合规标识。
权威头型与尺码匹配指南
根据制造商权威几何尺寸提供头型智能匹配及交互式尺码换算。
The Alpinestars SM5 is designed for an Intermediate Oval head shape. It features a compact fit optimized for motocross and off-road riding, ensuring stability without integrated electronics.
如何测量头围
将软皮尺水平围绕头部，位于眉毛上方约1指处并绕过耳上方。保持舒适服帖，读取数值并多次测量以保证准确。
设计概念与研发背景
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Built for aggressive dirt performance, the Alpinestars SM5 Course Blue is crafted for intense dirt riding with ultra-wide goggle eyeport stabilization across punishing tracks and trails. Its High-Yield Impact-Resistant Polycarbonate / Lexan shell tips the scales at 1456g, channeling boundary-layer airflow to maintain a ~99 dB acoustic cabin profile while meeting DOT, ECE 22.05 impact standards. An ultra-breathable, antimicrobial interior liner stabilizes the helmet during aggressive terrain vibration, locked in securely with track-proven Double D-Ring retention.
核心亮点：
骑手画像与适用场景
购买渠道
| Retailer | Price | Availability | |
|---|---|---|---|
| Amazon (US) | 查看实时价格 | View on site | Check Price → |
价格走势与历史
ℹ️ Helmetsan 是一家独立的摩托车安全与选购决策平台。通过合作渠道链接购买时，我们可能获得少量佣金，这不会增加您的任何费用。
产品设计理念与技术规格
Alpinestars (Italy)工程技术深度解析
Features Advanced multi-composite aerodynamic shell geometry engineered for optimal impact absorption and stability paired with Anti-scratch Class-1 optical shield with Pinlock anti-fog lens compatibility and toolless quick-release. The interior utilizes Multi-density EPS liner with moisture-wicking washable interior lining and speaker cutout pockets with pre-shaped speaker cutouts for seamless Bluetooth comms integration.
版型匹配与外壳架构
标准中椭头型
标准中椭版型：符合全球 80% 以上骑手的人体工学弧度。
安全与认证
声学与空气动力学
科技与舒适配置
区域合规性与路权合法性
Certified for use in the United States; meets DOT FMVSS 218 standards.
Compliant with ECE 22.05 regulations for use in European markets.
Accepted for use in Canada under DOT standards.
区域法规与合规指南
交互式尺码匹配工具
The Alpinestars SM5 is designed for an Intermediate Oval head shape. It features a compact fit optimized for motocross and off-road riding, ensuring stability without integrated electronics.
如何测量头围
将软皮尺水平围绕头部，位于眉毛上方约1指处并绕过耳上方。保持舒适服帖，读取数值并多次测量以保证准确。
在各电商平台查看
此头盔链接至授权经销商与官方零售渠道。实时监控各平台价格与库存。
Compare & buy
Add this helmet to the comparison tool to see it side by side with others, or check current offers from trusted retailers.
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数据可信度与验证溯源
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.