MT Helmets · Thunder 4 SV
MT Helmets Thunder 4 SV Prateado metálico
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.
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
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.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
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.
View on retailers
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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.