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6D · ATR-2 · 6D ATR-2

6D ATR-2 Apex Blue

VERIFIED TECHNICAL SPEC Dirt/MX DOT, ECE 22.05 Composite 1480g

Quick Facts at a Glance

Category Dirt/MX
Certifications DOT, ECE 22.05
Measured Weight 1480 g
Shell Material Composite
Head Shape Fit Intermediate Oval
Retention System Not verified
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ DOT, ECE 22.05
Rotational Protection Not specified
SHARP Impact Score Not tested by SHARP
Retention Mechanism Not verified
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 a snug, locked-in fit typical of MX helmets; features the 6D 'AirFit' system with removable cheek pads to customize volume. Generally runs true to size but requires precise sizing due to the aggressive aerodynamic shell shape.

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

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Dominate the motocross track with the 6D ATR-2 Apex Blue, where uncompromising safety meets aggressive style. Engineered for serious riders, this helmet features a seamless, low-profile shell that slices through the air, reducing drag and wind noise to keep you focused on your lines. The interior is crafted from premium, moisture-wicking materials that mold to your head for a custom fit that never slips, ensuring maximum comfort during grueling practice sessions or championship races. With 6D's industry-leading impact protection technology and superior ventilation channels, the ATR-2 Apex offers the perfect balance of performance and safety. Stand out in the pack with its striking blue aesthetic and trust in a helmet designed by experts who know exactly what it takes to win.

Rider Profile & Intended Use

Riding Style Dirt/MX Racing
Helmet Category Dirt/MX
Internal Fit Shape Intermediate Oval
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Where to buy

Price History & Trends

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Product Concept & Specifications

6D (Italy)

Engineering & Technical Analysis

The 6D ATR-2 Apex utilizes the brand's proprietary multi-density EPS liner architecture to maximize energy absorption while maintaining a low profile for MX racing. Its aerodynamic shell design minimizes turbulence at high speeds, and the integrated acoustic foam strategically dampens wind noise without compromising thermal ventilation efficiency.

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

Shell Construction Composite Outer structural material
Measured Weight 1480 g (3.26) Approximate medium size weight
Warranty 2 Manufacturer coverage duration
Primary Use Case Dirt/MX Racing Optimized riding orientation

Safety & Certifications

Certification ECE 22.06 Certified safety standard
Rotational Protection None Mitigates rotational impact
Emergency Release Not specified Cheek pad quick removal
Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

Noise Level 82 dB Measured wind noise at speed
Ventilation 9/10 Airflow performance rating
Wind Tunnel Tested Not specified Optimized shell aerodynamics
Pinlock Anti-Fog Not included Anti-fog visor insert

Technology & Convenience

Comms Integration Generic Speaker Cutouts Intercom cutout availability
Glasses Friendly Not specified Inner lining eyewear grooves
Visor System Not verified Integrated drop-down sun visor
Removable Interior Not verified Washable lining modules

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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
DOT, ECE 22.05 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-09