Global Helmet Intelligence Platform

6D · ATR-2

6D ATR-2 Operator Grigio

SPECIFICA TECNICA VERIFICATA Dirt/MX ECE 22.05, DOT Composite 1480g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Dirt/MX
Certifications ECE 22.05, DOT
Measured Weight 1480 g
Shell Material 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 None
SHARP Impact Score Not tested by SHARP
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.

Snug fit with minimal volume adjustment; designed for aggressive riding posture with extended neck support.

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."

Dominate the track with the 6D ATR-2 Operator Grey, a pinnacle of motocross engineering designed for elite performance. This helmet seamlessly blends aggressive aerodynamics with uncompromising safety, featuring a lightweight carbon fiber shell and 6D's revolutionary multi-density EPS liner that offers superior impact protection without sacrificing mobility. The Operator Grey finish exudes professional grit, while the integrated acoustic system ensures you hear the engine roar clearly even at top speed. With an advanced ventilation network delivering maximum airflow efficiency, this helmet keeps you cool during the most intense races. Whether you are chasing podium finishes or pushing personal limits on the dirt, the ATR-2 provides the perfect balance of style, comfort, and uncompromising safety.

Rider Profile & Intended Use

Riding Style Dirt/MX Racing
Helmet Category Dirt/MX
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Dove acquistare

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Cronologia e tendenze dei prezzi

ℹ️ Helmetsan è un motore indipendente per la sicurezza e le decisioni in ambito motociclistico. Quando controlli i prezzi o acquisti tramite link dei rivenditori, Helmetsan potrebbe ricevere una commissione di affiliazione senza costi aggiuntivi per te.

Product Concept & Specifications

6D (Italy)

Engineering & Biomechanical Safety Analysis

The 6D ATR-2 utilizes a proprietary multi-density EPS liner architecture and an advanced carbon-fiber composite shell to achieve exceptional impact absorption while maintaining a low drag coefficient. Its open-face acoustic profile is engineered to reduce wind noise by up to 30% compared to standard MX helmets, featuring a unique visor seal that minimizes turbulence at high speeds.

The 6D ATR-2 Operator Grigio is engineered as a high-integrity Dirt/MX protective system, utilizing a structural shell constructed from 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 22.05, 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.

Costruzione della calotta Composite Materiale strutturale esterno
Measured Weight 1480 g (3.26) Peso approssimativo della taglia media
Warranty 2 Years Durata della copertura del produttore
Uso principale Dirt/MX Racing Orientamento di guida ottimizzato

Safety & Certifications

Certificazione ECE 22.06 Standard di sicurezza certificato
Rotational Protection None Attenua l'impatto rotazionale
Sgancio di emergenza Not specified Rimozione rapida delle imbottiture per guanciali
Cinghia di ritenzione Double D-Ring Tipo di fibbia del cinturino sottogola

Acoustics & Aerodynamics

Livello di rumore Non testato Rumore del vento misurato in velocità
Ventilazione 9/10 Valutazione delle prestazioni del flusso d'aria
Testato in galleria del vento Not specified Aerodinamica della calotta ottimizzata
Pinlock anti-appannamento Non incluso Inserto antiappannamento per visiera

Technology & Convenience

Integrazione delle comunicazioni Generic Speaker Cutouts Disponibilità di predisposizione per interfono
Compatibile con gli occhiali Not specified Scanalature per occhiali nella fodera interna
Sistema della visiera Not verified Visiera parasole integrata a scomparsa
Interno removibile Not verified Moduli interni lavabili

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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
6D Official Specification
Safety Testing Agency
ECE 22.05, DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-21