Alpinestars · SM5
Alpinestars SM5 パールホワイト
一目でわかる基本スペック
安全性スペック概要
各国の公的安全規格および衝突安全テスト基準との適合性。
安全基準への適合はメーカー公式資料および試験機関の公表データに基づきます。ご使用前にヘルメット実物の安全認証ラベルをご確認ください。
サイズ・頭部フィットガイド
頭部形状と公式寸法に基づくインタラクティブ・サイズ判定ツール。
Alpinestars SM5 is a motocross/dirt helmet designed for off-road use; it does not feature integrated speakers, cable management ports, or HUD compatibility.
頭囲の正しい測り方
メジャーを眉毛と耳のすぐ上を通るように頭周りに水平に巻き、適度にフィットさせて目盛りを読みます。正確を期すため複数回測定してください。
デザインコンセプト & 開発背景
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Dominate the track and trail with the Alpinestars SM5 in a striking Pearl White finish, designed for riders who demand uncompromising performance without sacrificing style. This dirt-specific helmet features an aggressive aerodynamic profile that slices through the air, reducing drag and minimizing wind noise for enhanced focus during intense off-road sessions. The interior is lined with moisture-wicking fabric and customizable EPS padding, ensuring a secure, race-ready fit that adapts to your head shape perfectly. With its robust construction meeting rigorous safety standards, the SM5 offers peace of mind when pushing limits on rough terrain. Whether you are navigating technical single-track or racing on closed circuits, this helmet delivers superior ventilation through strategic intake and exhaust ports, keeping you cool even in the hottest conditions. Elevate your riding experience with a piece of gear that blends cutting-edge technology with timeless Alpinestars heritage.
主な特徴：
対象ライダー & 想定用途
取扱店・価格比較
| Retailer | Price | 販売状況 | |
|---|---|---|---|
| Amazon (US) | Check live price | View on site | Check Price → |
Price History & Trends
ℹ️ Helmetsan is an independent motorcycle safety & decision engine. When you check prices or purchase via retailer links, Helmetsan may earn an affiliate commission at no additional cost to you.
Product Concept & Specifications
Alpinestars (Italy)工学設計 & 技術分析
The SM5 utilizes Alpinestars' proprietary EPS liner architecture with a multi-density foam construction to optimize impact absorption across the chin and temple regions. Its aerodynamic shell geometry is engineered to manage airflow turbulence at high speeds while maintaining structural rigidity under lateral G-forces typical of motocross racing.
Fit & Shell Structure
Intermediate Oval Shape
標準オーバル：約80％以上のライダーに適したエルゴノミクスカーブ。
Safety & Certifications
空力・静粛性分析
Technology & Convenience
Regional Legality & Compliance
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.
Regional Legality Guidance
Interactive Size & Fit Finder
Alpinestars SM5 is a motocross/dirt helmet designed for off-road use; it does not feature integrated speakers, cable management ports, or HUD compatibility.
頭囲の正しい測り方
メジャーを眉毛と耳のすぐ上を通るように頭周りに水平に巻き、適度にフィットさせて目盛りを読みます。正確を期すため複数回測定してください。
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データの信頼性と検証情報
Helmetsanは複数データソースからの厳格な検証を実施しています。未検証データは推測せず明確に未検証と明記します。