Alpinestars · SM5
SM5 コースブルー
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。
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.
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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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.
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
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.
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
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.
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。