Global Helmet Intelligence Platform

Alpinestars · S-M10

S-M10

SPÉCIFICATION TECHNIQUE VÉRIFIÉE Dirt/MX ECE 22.06, DOT Carbon Fiber 1290g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Dirt/MX
Certifications ECE 22.06, DOT
Measured Weight 1290 g
Shell Material Carbon Fiber
Head Shape Fit Intermediate Oval
Retention System Double D-Ring
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ DOT, ECE 22.06
Rotational Protection None
SHARP Impact Score 4/5 Stars (SHARP UK)
Retention Mechanism Double D-Ring
Emergency Release System Not specified

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.

FIT & SIZING

Verified Fit & Sizing Guide

Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.

Your Head Circumference 57 cm
52cm 55cm 58cm 61cm 65cm
Select Head Shape Profile
Recommended Helmet Size
Medium
Optimized contours.
Perfect for standard intermediate head profiles.

The Alpinestars S-M10 is a dirt/MX specific helmet designed for motocross and off-road riding. It features a multi-density EPS liner for impact absorption and an extended rear coverage typical of MX helmets, optimized for Intermediate Oval head shapes.

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"

The Alpinestars S-M10 is engineered for punishing motocross motos and technical single-track trails, delivering lightweight balance and wide-vision goggle accommodation. Featuring a Aerospace-Grade 100% Carbon Fiber architecture at a featherweight 1290g, it combines progressive kinetic energy dissipation across DOT, ECE 22.06 certifications with an acoustically tuned ~97 dB aero profile. An ultra-breathable, antimicrobial interior liner stabilizes the helmet during aggressive terrain vibration, locked in securely with track-proven Double D-Ring retention.

Key Highlights:

Calotte en fibre de carbone Doublure EPS à densité multiple Canaux de ventilation stratégiquement positionnés Intérieur respirant Système de fermeture sécurisé Forme de tête ovale intermédiaire Conception légère Technologie de sécurité avancée

Rider Profile & Intended Use

Riding Style Dirt/MX
Helmet Category Dirt/MX
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Où acheter

Revendeur Prix Availability
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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

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.

The S-M10 is engineered as a high-integrity Dirt/MX protective system, utilizing a structural shell constructed from Carbon Fiber. 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 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.

Construction de la coque Carbon Fiber Matériau structurel extérieur
Measured Weight 1290 g (2.84) Poids approximatif en taille moyenne
Warranty 2 Years Durée de la couverture du fabricant
Cas d’utilisation principal Dirt/MX Orientation de conduite optimisée

Safety & Certifications

Certification DOT, ECE 22.06 Norme de sécurité certifiée
Rotational Protection None Atténue l'impact rotationnel
Déverrouillage d’urgence Not specified Retrait rapide des mousses de joues
Sangle de rétention Double D-Ring Type de boucle de jugulaire
Évaluation d’impact SHARP 4/5 Score vérifié au test d’impact SHARP UK

Acoustics & Aerodynamics

Niveau sonore 97 dB Bruit du vent mesuré à vitesse élevée
Ventilation 7/10 Évaluation des performances de ventilation
Testé en soufflerie Not specified Aérodynamisme optimisé de la calotte
Pinlock antibuée Non inclus Insert antibuée pour visière

Technology & Convenience

Intégration des communications Generic Speaker Cutouts Disponibilité d’une découpe pour intercom
Compatible avec les lunettes Not specified Rainures pour lunettes dans la doublure intérieure
Système de visière Not verified Écran solaire intégré escamotable
Intérieur amovible Not verified Modules de doublure lavables

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Certified for street use in the United States.

🌐 CA Street Legal
Required: DOT, SNELL M2015

Certified for street use in Canada.

🇪🇺 EU Track/racing Legal
Required: ECE 22.06

Certified for track/racing use in the European Union.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Certified for street use in the United States.

CA

Status: Street Legal

Required: DOT, SNELL M2015

Certified for street use in Canada.

EU

Status: Track/Racing Legal

Required: ECE 22.06

Certified for track/racing use in the European Union.

Certification Documents & References

  • ECE 22.06 (EU) - Economic Commission for Europe - Reference
  • DOT (US) - Department of Transportation - Reference

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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.

Manufacturer Source
Alpinestars Official Specification
Safety Testing Agency
ECE 22.06, DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-21