GMax · GM-11S · GMax GM-11S
GMax GM-11S Hi-Viz Yellow
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
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Amazon (US)
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Price History & Trends
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Product Concept & Specifications
GMax (United States)Engineering & Technical Analysis
The GMax GM-11S Hi-Viz Yellow helmet features a polycarbonate shell, offering excellent impact resistance. It has a comfortable fit with adjustable cheek pads and a breathable ventilation system for reduced fogging. The intermediate oval head shape accommodates a wide range of riders. This dirt/mx helmet also includes safety features such as a quick-release chin strap.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
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.