Global Helmet Intelligence Platform

GMax · GM-11

GMax GM-11

技术规格已验证 Dirt/MX DOT, ECE 22.06 Polycarbonate 1500g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

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 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"

GMax GM-11 专为追求在土路和越野赛道上获得可靠性能的骑手而设计。该头盔采用高强度聚碳酸酯外壳,可提供坚固的防碎屑和防冲击屏障,在不增加重量的前提下确保骑手安全。其先进的通风系统经过精心设计,可提供最佳气流,在剧烈且长时间的骑行中有效减少热量积聚和骑手疲劳。内衬采用中等椭圆形轮廓设计,符合最常见的头部尺寸,确保稳固且舒适的贴合感,即使在最崎岖的 terreno 上也能保持稳定。GM-11 拥有体现其越野血统的流畅且富有侵略性的外观设计,在耐用性与核心功能之间取得了平衡。宽大的视窗确保了出色的周边视野,让骑手能够专注于前方的路径。无论您是周末爱好者还是专业的越野竞赛选手,GMax GM-11 都能提供所需的防护、舒适度和气流,让您充满信心挑战极限。

GMax GM-11 represents an empirical engineering balance between aerodynamic stability and high-absorption cranial protection. Developed under GMax's strict quality assurance standards in United States, the shell profile is precision-molded to minimize high-velocity turbulent drag while maintaining comprehensive multi-axis impact attenuation.

Within the Dirt/MX segment, ergonomic weight distribution and acoustic insulation are paramount. The chassis geometry is tailored to distribute mass directly above the cervical pivot axis, counteracting high-speed buffeting and minimizing long-distance rider fatigue. Inspect the verified laboratory telemetry and structural analysis below for detailed performance parameters.

Key Highlights:

聚碳酸酯外壳 先进的通道式通风系统 中等椭圆形贴合 可拆卸且可水洗的内衬 宽大视窗

Rider Profile & Intended Use

Riding Style Motocross
Helmet Category Dirt/MX
Internal Fit Shape Intermediate Oval
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价格历史与趋势

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Product Concept & Specifications

GMax (United States)

Engineering & Biomechanical Safety Analysis

GMax GM-11 头盔采用聚碳酸酯外壳,提供卓越的冲击保护。其中等椭圆形头部形状确保了平均头部尺寸骑手的舒适贴合。该头盔包含先进的通风系统以实现最佳气流,减少长时间骑行过程中的热量积聚和疲劳。

The GMax GM-11 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 DOT, ECE 22.06 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.

外壳结构 Polycarbonate 外部结构材料
Measured Weight 1500 g (3.31) 中号尺寸的大约重量
Warranty 1 年 制造商保障期限
主要用途 Motocross 优化的骑行姿态

Safety & Certifications

认证 DOT 经认证的安全标准
Rotational Protection None 减轻旋转冲击
紧急释放 Not specified 脸颊垫快速拆卸
固定带 Double D-Ring 下巴带扣类型

Acoustics & Aerodynamics

噪音水平 95 dB 实测高速风噪
通风 7/10 气流性能评级
风洞测试 Not specified 优化的外壳空气动力学
Pinlock 防雾 未包含 防雾镜片内衬

Technology & Convenience

通信设备集成 Generic Speaker Cutouts 对讲机开孔可用性
适合佩戴眼镜 Not specified 内衬眼镜凹槽
面罩系统 Not verified 一体式下拉式遮阳镜
可拆卸内衬 Not verified 可清洗内衬模块

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
DOT, ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-08