Alpinestars SM5 Matte Black
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.
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
"Ride Safe"
Dominez la piste avec l'Alpinestars SM5 Matte Black, un casque conçu pour les pilotes exigeant des performances et un style sans compromis. Son esthétique épurée et agressive est alliée à une technologie de pointe qui vous garde au frais, au calme et protégé à haute vitesse. Que vous preniez des virages serrés sur un col de montagne sinueux ou que vous repoussiez vos limites sur circuit, le SM5 vous apporte la confiance nécessaire pour donner le meilleur de vous-même.
Rider Profile & Intended Use
Où acheter
| Revendeur | Prix | Availability | |
|---|---|---|---|
| Amazon (US) | Voir le prix en temps réel | Voir sur le site | Voir le prix → |
Historique et tendances des prix
ℹ️ Helmetsan est un moteur indépendant de sécurité et d’aide à la décision pour les motos. Lorsque vous consultez des prix ou achetez via des liens de revendeurs, Helmetsan peut percevoir une commission d’affiliation, sans frais supplémentaires pour vous.
Product Concept & Specifications
Alpinestars (Italy)Engineering & Biomechanical Safety Analysis
L'Alpinestars SM5 représente une évolution significative de l'ingénierie des casques intégraux, utilisant une coque en composite de fibre de carbone avancée qui réduit considérablement le poids sans compromettre l'intégrité structurelle. La mousse interne en EPS est conçue avec des zones multi-densités pour optimiser l'absorption d'énergie lors d'un impact, respectant strictement les dernières normes de sécurité ECE 22.06 qui imposent des exigences de force de rétention plus élevées que les générations précédentes. Le profil aérodynamique a été méticuleusement ajusté par des tests en soufflerie, présentant une mentonnière profilée et une intégration de spoiler arrière qui minimisent la traînée tout en maintenant un flux d'air à haute vitesse à travers des entrées et sorties d'air dédiées.
The Alpinestars SM5 Matte Black is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from Carbon Fiber Composite Shell with EPS Liner. 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 ECE 22.06, DOT FMVSS 218 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
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.
View on retailers
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Compatible Motorcycles for the Alpinestars SM5 Matte Black
Optimized for aggressive street carving, neutral forward-leaning stances, and high-efficiency brow airflow.
Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.