Global Helmet Intelligence Platform

GMax · GM-11

GMax GM-11 Antraciet

GEVERIFIEERDE TECHNISCHE SPECIFICATIE Dirt/MX ECE 22.06, DOT Polycarbonate 1500g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Dirt/MX
Certifications ECE 22.06, DOT
Measured Weight 1500 g
Shell Material Polycarbonate
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 ✓ DOT
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.

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

"Built for Speed"

The GMax GM-11 is engineered for riders who demand reliability and performance on dirt trails and motocross tracks. Featuring a high-impact polycarbonate shell, this helmet offers a robust barrier against debris and impact, ensuring rider safety without compromising on weight. Its advanced ventilation system is meticulously designed to provide optimal airflow, effectively reducing heat buildup and rider fatigue during intense, extended sessions. The interior is shaped in an intermediate oval profile, catering to the most common head dimensions for a secure, comfortable fit that stays stable even on the roughest terrain. With sleek, aggressive styling that reflects its off-road pedigree, the GM-11 balances durability with essential functionality. The wide eye port ensures excellent peripheral vision, allowing riders to maintain focus on the path ahead. Whether you are a weekend enthusiast or a dedicated off-road competitor, the GMax GM-11 delivers the protection, comfort, and airflow necessary to push your limits with confidence.

Key Highlights:

Polycarbonaat schaal Geavanceerde kanaalventilatie Tussenliggende ovale pasvorm Verwijderbare en wasbare voering Breed oogport

Rider Profile & Intended Use

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

Waar te koop

Verkoper Prijs Availability
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Product Concept & Specifications

GMax (United States)

Engineering & Biomechanical Safety Analysis

The GMax GM-11 Anthracite features a polycarbonate shell for lightweight durability and impact resistance, ideal for dirt/MX riding. Its intermediate oval head shape ensures a comfortable fit, while the ventilation system promotes airflow to keep riders cool. The helmet incorporates safety tech designed for off-road use, balancing protection with breathability and comfort.

The GMax GM-11 Antraciet is engineered as a high-integrity Dirt/MX 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 22.06, 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.

Schaalconstructie Polycarbonate Extern constructiemateriaal
Measured Weight 1500 g (3.31) Geschat gewicht bij maat M
Warranty 1 jaar Dekkingsduur van de fabrikant
Primair gebruik Motocross Geoptimaliseerde rijoriëntatie

Safety & Certifications

Certificering DOT Gecertificeerde veiligheidsnorm
Rotational Protection None Vermindert rotatie-impact
Noodontgrendeling Not specified Snelle verwijdering van wangkussens
Retentieband Double D-Ring Type sluiting van de kinband

Acoustics & Aerodynamics

Geluidsniveau 95 dB Gemeten windgeruis bij snelheid
Ventilatie 7/10 Beoordeling van de luchtstroomprestaties
In de windtunnel getest Not specified Geoptimaliseerde aerodynamica van de buitenschaal
Pinlock anticondens Niet inbegrepen Anticondens-inzetstuk voor vizier

Technology & Convenience

Integratie van communicatiesystemen Generic Speaker Cutouts Beschikbaarheid van uitsparing voor intercom
Geschikt voor brildragers Not specified Brillengleuven in de binnenvoering
Viziersysteem Not verified Geïntegreerd neerklapbaar zonnevizier
Uitneembare binnenvoering Not verified Wasbare voeringmodules

Regional Legality & Compliance

🇺🇸 US Street Legal
Required: DOT

Meets Federal Motor Vehicle Safety Standard 218 requirements for on-road use.

Regional Legality Guidance

US

Status: Street Legal

Required: DOT

Meets Federal Motor Vehicle Safety Standard 218 requirements for on-road 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
GMax Official Specification
Safety Testing Agency
ECE 22.06, DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-21