Leatt · Velocity 4.0
Leatt Velocity 4.0 White
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.
Design ouvert avec profil de coupe spécifique Leatt Velocity 4.0.
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
"Protect what you love"
Dominez le bitume avec style absolu grâce au Leatt Velocity 4.0 White, le choix ultime pour les motards urbains modernes qui refusent de faire de compromis sur l'esthétique ou la sécurité. Ce casque ouvert arbore une finition blanche éclatante qui attire tous les regards, associée à un profil aérodynamique conçu pour fendre le vent à haute vitesse. Doté de canaux de ventilation avancés, il offre un flux d'air exceptionnel pour vous garder au frais lors de trajets intenses, tandis que sa coupe ergonomique garantit un confort optimal toute la journée sans points de pression. Que vous soyez en train de négocier des virages ou de parcourir la route ouverte, le Velocity 4.0 offre un équilibre parfait entre agilité légère et protection robuste. Profitez de la liberté d'un casque ouvert avec la confiance d'une ingénierie premium, en faisant le compagnon idéal pour vos trajets quotidiens ou vos aventures du week-end.
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
Leatt (New Zealand)Engineering & Biomechanical Safety Analysis
Le Leatt Velocity 4.0 utilise une coque en polycarbonate légère renforcée par une mousse EPS absorbante les chocs, optimisée pour la dynamique des casques ouverts. Son système de doublure intégré à double densité assure un maintien précis, tandis que la mentonnière profilée minimise les turbulences à haute vitesse.
The Leatt Velocity 4.0 White is engineered as a high-integrity Open Face protective system, utilizing a structural shell constructed from Polycarbonate. 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 22.05, 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.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
Design ouvert avec profil de coupe spécifique Leatt Velocity 4.0.
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.
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Compatible Motorcycles for the Leatt Velocity 4.0 White
Low-profile cranial coverage tuned for neutral cruiser posture, scenic riding, and urban cross-traffic awareness.
Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.