GMax · GM-11S · GMax GM-11S
GMax GM-11S Urban Grey
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
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.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
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
""
Snowmobile/MX crossover with dual lens shield and breath deflector.
Rider Profile & Intended Use
Where to buy
Price History & Trends
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Product Concept & Specifications
GMax (United States)Engineering & Technical Analysis
The GMax GM-11S Urban Grey features a polycarbonate shell for lightweight durability and intermediate oval fit for a secure, comfortable fit. Its dirt/MX design includes advanced ventilation channels to keep riders cool during off-road use, while the helmet's safety tech ensures impact protection. The lightweight construction and ergonomic design enhance comfort during extended rides, making it a practical choice for motocross enthusiasts.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Regional Legality & Compliance
Meets Federal Motor Vehicle Safety Standard 218 requirements.
Accepted for use in most provinces under DOT compliance.
Lacks ECE certification required for public road use in European countries.
Regional Legality Guidance
Interactive Size & Fit Finder
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.
Compare & buy
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User Reviews
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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.