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GMax · GM-11 · GMax GM-11

GMax GM-11 Course TC-2

VERIFIED TECHNICAL SPEC Dirt/MX DOT, ECE 22.06 Polycarbonate 1500g

Quick Facts at a Glance

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

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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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:

Polycarbonate shell Advanced channeling ventilation Intermediate oval fit Removable and washable liner Wide eye port

Rider Profile & Intended Use

Riding Style Motocross
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

GMax (United States)

Engineering & Technical Analysis

The GMax GM-11 Course TC-2 helmet features a polycarbonate shell, providing excellent impact protection and durability. It offers a comfortable fit with an intermediate oval head shape and good ventilation to keep riders cool during long rides. The helmet also features advanced safety technology for enhanced protection.

Fit & Shell Structure

Intermediate Oval Shape

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

Shell Construction Polycarbonate Outer structural material
Measured Weight 1500 g (3.31) Approximate medium size weight
Warranty 1 Manufacturer coverage duration
Primary Use Case Motocross Optimized riding orientation

Safety & Certifications

Certification DOT 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 95 dB Measured wind noise at speed
Ventilation 7/10 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
GMax Official Specification
Safety Testing Agency
DOT, ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-05-09