6D · ATR-2Y
6D ATR-2Y 流动红
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.
Aggressive fit with high cheek pads; runs slightly small for those preferring a loose street helmet feel. Requires precise sizing as the shell is designed to move with the head during impacts. 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
"Perfect Fit. Perfect Protection."
Domina la pista con el 6D ATR-2Y Flow Red, un casco diseñado para un rendimiento de motocross de élite donde el estilo se une con una seguridad sin concesiones. Esta agresiva carcasa roja presenta un perfil aerodinámico y elegante, diseñado para cortar el aire manteniendo una amortiguación acústica superior para la concentración del piloto. En su interior, el avanzado sistema de ajuste garantiza un ajuste personalizado en la cabeza, eliminando cualquier movimiento durante aterrizajes bruscos y saltos. El sistema de ventilación integrado ofrece la máxima eficiencia de refrigeración, manteniéndote seco y cómodo desde la primera vuelta hasta la última. Con su estética audaz y la legendaria tecnología de protección contra impactos de 6D, este casco no es solo equipo; es tu ventaja competitiva definitiva en el terreno.
Rider Profile & Intended Use
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Product Concept & Specifications
6D (Italy)Engineering & Biomechanical Safety Analysis
El 6D ATR-2Y utiliza un laminado de compuesto de fibra de carbono patentado y optimizado para impactos de motocross, con un revestimiento de EPS de doble densidad que absorbe las fuerzas de rotación de alta energía. El diseño aerodinámico de su carcasa incorpora canales de flujo de aire activo que dirigen el aire fresco directamente al cuello y al torso del piloto, manteniendo la regulación térmica incluso a velocidades de competición sostenidas.
The 6D ATR-2Y 流动红 is engineered as a high-integrity Dirt/MX protective system, utilizing a structural shell constructed from Carbon-Kevlar. 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 DOT, ECE 22.05 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
Regional Legality & Compliance
Meets DOT FMVSS 218 standards; intended for off-road/MX use.
Compliant with ECE 22.05 regulations; intended for off-road/MX use.
Regional Legality Guidance
Interactive Size & Fit Finder
Aggressive fit with high cheek pads; runs slightly small for those preferring a loose street helmet feel. Requires precise sizing as the shell is designed to move with the head during impacts. 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.
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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.