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6D · ATR-2Y · 6D ATR-2Y

6D ATR-2Y Flow Red

VERIFIED TECHNICAL SPEC Dirt/MX DOT, ECE 22.05 Carbon-Kevlar 1150g

Quick Facts at a Glance

Category Dirt/MX
Certifications DOT, ECE 22.05
Measured Weight 1150 g
Shell Material Carbon-Kevlar
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 motocross; features an extended rear shell and deep cheek pads to accommodate larger head sizes without compromising stability. The interior liner is removable and washable.

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 track with the 6D ATR-2Y Flow Red, a helmet engineered for elite motocross performance where style meets uncompromising safety. This aggressive red shell features a sleek, aerodynamic profile designed to slice through the air while maintaining superior acoustic dampening for rider focus. Inside, the advanced fit system ensures a custom-like lock on your head, eliminating movement during hard landings and jumps. The integrated ventilation system delivers maximum cooling efficiency, keeping you dry and comfortable from the first lap to the last. With its bold aesthetic and 6D's legendary impact protection technology, this helmet is not just gear; it is your ultimate competitive advantage on the dirt.

Rider Profile & Intended Use

Riding Style Dirt/MX
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-2Y utilizes a proprietary carbon fiber composite layup optimized for motocross impacts, featuring a dual-density EPS liner that absorbs high-energy rotational forces. Its aerodynamic shell design incorporates active airflow channels that channel cooling air directly to the rider's neck and core, maintaining thermal regulation even at sustained racing speeds.

Fit & Shell Structure

Intermediate Oval Shape

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

Shell Construction Carbon-Kevlar Outer structural material
Measured Weight 1150 g (2.54) Approximate medium size weight
Warranty 2 Manufacturer coverage duration
Primary Use Case Dirt/MX 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

Regional Legality & Compliance

🇺🇸 US Legal For Off-road Use
Required: DOT

Meets DOT FMVSS 218 standards; intended for off-road/MX use.

🇪🇺 EU Legal For Off-road Use
Required: ECE 22.05

Compliant with ECE 22.05 regulations; intended for off-road/MX use.

Regional Legality Guidance

US

Status: Legal for Off-Road Use

Required: DOT

Meets DOT FMVSS 218 standards; intended for off-road/MX use.

EU

Status: Legal for Off-Road Use

Required: ECE 22.05

Compliant with ECE 22.05 regulations; intended for off-road/MX use.

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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