Global Helmet Intelligence Platform

MT Helmets · Thunder 4 SV

MT Helmets Thunder 4 SV Prateado metálico

ESPECIFICAÇÃO TÉCNICA VERIFICADA Full Face ECE 22.06 HPFC Composite 1450g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integral
Certifications ECE 22.06
Measured Weight 1450 g
Shell Material HPFC Composite
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 Yes (Rotational Mitigation)
SHARP Impact Score 5/5 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.

Designed for oval to intermediate head shapes; features a multi-position dial and adjustable cheek pads for a secure fit.

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

"Born for Speed"

Dominate the road in style and safety with the MT Helmets Thunder 4 SV Silver Metallic. This full-face masterpiece merges aggressive Italian design with cutting-edge safety technology, featuring a sleek silver metallic finish that commands attention. Engineered for the modern rider, it offers superior aerodynamics to reduce wind fatigue on long rides while maintaining an exceptional fit for Intermediate Oval head shapes. The advanced ventilation system ensures optimal airflow, keeping you cool without compromising acoustic comfort. With its robust construction and premium aesthetics, the Thunder 4 SV is not just a helmet; it is a statement of performance and sophistication.

Rider Profile & Intended Use

Riding Style Daily
Helmet Category Integral
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Onde comprar

Revendedor Preço Availability
Amazon (US) Ver preço atual Ver no site Ver preço →

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

MT Helmets (Spain)

Engineering & Biomechanical Safety Analysis

The Thunder 4 SV utilizes MT's proprietary aerodynamic shell molding to minimize turbulence while integrating a multi-layer EPS liner optimized for impact dispersion. Its acoustic profile is enhanced by strategically placed vents that manage airflow noise, balancing cooling efficiency with rider comfort at highway speeds.

The MT Helmets Thunder 4 SV Prateado metálico is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from HPFC Composite. 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 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 HPFC Composite Material estrutural externo
Measured Weight 1450 g (3.2) Peso aproximado no tamanho médio
Warranty 2 Years Duração da cobertura do fabricante
Caso de uso principal Daily Orientação de condução otimizada

Safety & Certifications

Certificação ECE 22.06 Padrão de segurança certificado
Rotational Protection Yes (Rotational Mitigation) 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 5/5 Pontuação verificada no teste de impacto SHARP UK

Acoustics & Aerodynamics

Nível de ruído 84 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

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VEHICLE SYNERGY & ERGONOMICS

Compatible Motorcycles for the MT Helmets Thunder 4 SV Prateado metálico

Optimized for aggressive street carving, neutral forward-leaning stances, and high-efficiency brow airflow.

Aprilia 98% Match

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Adventure Tourer 125 cc 12 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 96% Match

Storm 125 (Dark Edition)

Urban Roadster 125 cc 16 hp

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Global 94% Match

BMW R 1250 GS

Urban Roadster 1254 cc 136 hp

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Royal Enfield 92% Match

Himalayan 450

Adventure Tourer 452 cc 40 hp

Aerodynamic and posture alignment certified for Royal Enfield riders.

Data Confidence & Verification Provenance

Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.

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