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Bell · Moto-9S Flex

Bell Moto-9S Flex Tomac Replica

技术规格已验证 Dirt/MX DOT, Snell M2020 Composite 1450g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Dirt/MX
Certifications DOT, Snell M2020
Measured Weight 1450 g
Shell Material Composite
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, Snell M2020
Rotational Protection Flex Impact Liner
SHARP Impact Score 3/5 Stars (SHARP UK)
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.

专为激进的骑行姿态设计;适合大多数头型,但由于内衬密度原因,在大头型用户身上可能会感觉较紧。

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

"The Best Protection"

凭借 Bell Moto-9S Flex Tomac Replica 征服越野赛道。这款头盔完美融合了冠军血统与现代空气动力学效率。专为激进的 MX 骑手设计,这款复刻版头盔捕捉了传奇 Tomac 的标志性涂装,同时通过 Bell 先进的多密度 EPS 技术和强化复合材料外壳提供卓越的防护。集成的遮阳镜系统提供极佳的清晰度和防风效果,确保您专注于赛道路线而不会受到干扰。无论您是在追求领奖台位置,还是在当地小径上驰骋,Moto-9S Flex 都提供了安全、舒适和风格的无与伦比的平衡。体验为速度而生的头盔带来的差异,每一个曲线都为性能而计算,每一个细节都向越野摩托车界的传奇致敬。

Bell Moto-9S Flex Tomac Replica represents an empirical engineering balance between aerodynamic stability and high-absorption cranial protection. Developed under Bell'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:

Flex 冲击吸收内衬 轻量化复合材料外壳 3D Max-Dry 系统排汗速度快 3 倍 可调节通风通道 宽阔视野

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

Bell (United States)

Engineering & Biomechanical Safety Analysis

Moto-9S Flex 采用 Bell 专利的多密度 EPS 内衬和强化碳纤维复合材料外壳,在保持结构刚性的同时最大化冲击吸收。其空气动力学导流罩经过工程设计,可将气流引导至骑手肩部上方,与开面设计相比,显著降低了高速行驶时的风噪。

The Bell Moto-9S Flex Tomac Replica is engineered as a high-integrity Dirt/MX protective system, utilizing a structural shell constructed from Composite. 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, Snell M2020 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 Composite 外部结构材料
Measured Weight 1450 g (3.2) 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, Snell M2020 经认证的安全标准
Rotational Protection Flex Impact Liner 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
SHARP 碰撞评级 3/5 SHARP UK 冲击测试成绩已验证

Acoustics & Aerodynamics

噪音水平 92 dB 实测高速风噪
通风 8/10 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 Legal
Required: DOT, Snell M2020

Compliant with US safety regulations.

🌐 CA Legal
Required: DOT, Snell M2020

Compliant with Canadian safety regulations.

Regional Legality Guidance

US

Status: legal

Required: DOT, Snell M2020

Compliant with US safety regulations.

CA

Status: legal

Required: DOT, Snell M2020

Compliant with Canadian safety regulations.

Certification Documents & References

  • DOT (US) - Department of Transportation - Reference
  • Snell M2020 (US) - Snell Memorial Foundation - Reference

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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
Bell Official Specification
Safety Testing Agency
DOT, Snell M2020 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-08