Global Helmet Intelligence Platform

Alpinestars · S-M10

S-M10 Urban TC-3

ESPECIFICAÇÃO TÉCNICA VERIFICADA Dirt/MX ECE 22.06, DOT Carbon Fiber 1307g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Dirt/MX
Certifications ECE 22.06, DOT
Measured Weight 1307 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 ✓ 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 Urban TC-3 is a motocross/dirt bike helmet designed for off-road use. It features an open-face design typical of MX helmets, which generally does not accommodate full-face specific technologies like MIPS (rotational mitigation), HUD mounts, or deep speaker pockets found on street/full-face models. The fit is typically aggressive and narrow to suit MX riding positions, 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"

Experience the Alpinestars S-M10 Urban TC-3: combining Global Certified craftsmanship with Anti-scratch Class-1 optical shield with Pinlock anti-fog lens compatibility and toolless quick-release and Multi-density EPS liner with moisture-wicking washable interior lining and speaker cutout pockets. Perfect for riders who demand uncompromised safety and aero-acoustic comfort.

Key Highlights:

Calota em fibra de carbono Forro EPS multidensidade Canais de ventilação estratégicos Interior que absorve a humidade Sistema de fecho seguro Formato de cabeça oval intermédio Design leve Tecnologia de segurança avançada

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.

Onde comprar

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Histórico e tendências de preços

ℹ️ A Helmetsan é um motor independente de segurança e apoio à decisão para motociclos. Quando consulta preços ou compra através de ligações de retalhistas, a Helmetsan pode receber uma comissão de afiliado sem custos adicionais para si.

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 Urban TC-3 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.

Construção da calota Carbon Fiber Material estrutural externo
Measured Weight 1307 g (2.88) Peso aproximado no tamanho médio
Warranty 2 Years Duração da cobertura do fabricante
Caso de uso principal Dirt/MX Orientação de condução otimizada

Safety & Certifications

Certificação ECE 22.06 Padrão de segurança certificado
Rotational Protection None Atenua o impacto rotacional
Libertação de emergência Not specified Remoção rápida das almofadas das bochechas
Cinta de retenção Double D-Ring Tipo de fivela da cinta jugular
Classificação de impacto SHARP 4/5 Pontuação verificada no teste de impacto SHARP UK

Acoustics & Aerodynamics

Nível de ruído 98 dB Ruído do vento medido em velocidade
Ventilação 7/10 Avaliação do desempenho do fluxo de ar
Testado em túnel de vento Not specified Aerodinâmica otimizada da calota
Pinlock antiembaçante Não incluído Inserto antiembaciamento para viseira

Technology & Convenience

Integração de comunicações Generic Speaker Cutouts Disponibilidade de abertura para intercomunicador
Compatível com óculos Not specified Ranhuras para óculos no forro interior
Sistema de viseira Not verified Viseira solar integrada rebatível
Forro removível Not verified Módulos de forro laváveis

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
2026-09-19