Global Helmet Intelligence Platform

LS2 · Ls2 ff406

FF406

技术规格已验证 Full Face DOT FMVSS 218, ECE 22.06 Carbon Fiber Composite Shell with ABS Impact Liner 1264g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category 全盔
Certifications DOT FMVSS 218, ECE 22.06
Measured Weight 1264 g
Shell Material Carbon Fiber Composite Shell with ABS Impact Liner
Head Shape Fit Intermediate Oval
Retention System Quick Release Buckle
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

How this helmet’s verified certifications map to recognized safety homologations and crash testing.

Certified Homologation ✓ ECE 22.06, DOT FMVSS 218
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 4/5 Stars (SHARP UK)
Retention Mechanism Quick Release Buckle
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.

Optimized for Intermediate Oval head shapes with pressure-relief temple channels and contoured removable cheek pads.

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

"L'homme, la sécurité, le sport"

The LS2 FF406 is crafted for daily urban navigators conquering dense traffic, pairing agile street ergonomics with certified multi-impact protection. Built around a High-Yield Impact-Resistant Polycarbonate / Lexan shell weighing a featherweight 1264g, its multi-density EPS matrix is aerodynamically sculpted to isolate cabin noise to ~85 dB while dissipating kinetic impact forces across ECE 22.06, DOT FMVSS 218 benchmarks. Inside, 3D laser-cut cheek pads tailor naturally to an Intermediate Oval profile with dedicated eyewear relief channels, secured by a glove-friendly quick-release ratcheting buckle for confident all-day riding.

Rider Profile & Intended Use

Helmet Category 全盔
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

去哪里购买

零售商 价格 Availability
Amazon (US) 查看实时价格 在网站上查看 查看价格 →

价格历史与趋势

ℹ️ Helmetsan 是一个独立的摩托车安全与决策引擎。当您查看价格或通过零售商链接购买时,Helmetsan 可能会获得联盟佣金,且不会向您收取额外费用。

Product Concept & Specifications

LS2 (Spain)

Engineering & Biomechanical Safety Analysis

Features Kinetic Polymer Alloy (KPA) / HPFC High Performance Fiberglass Composite shell construction paired with 3D Optically Correct Class A polycarbonate visor with quick release system and internal sun shield. The interior utilizes Laser-cut multi-density EPS with breathable hypoallergenic removable lining with pre-shaped speaker cutouts for seamless Bluetooth comms integration.

The FF406 is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from Carbon Fiber Composite Shell with ABS Impact Liner. 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 FMVSS 218, 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 Carbon Fiber Composite Shell with ABS Impact Liner 外部结构材料
Measured Weight 1264 g (2.79) 中号尺寸的大约重量
Warranty 2 Years 制造商保障期限
主要用途 Not specified 优化的骑行姿态

Safety & Certifications

认证 ECE 22.06, DOT FMVSS 218 经认证的安全标准
Rotational Protection Yes (Rotational Mitigation) 减轻旋转冲击
紧急释放 Not specified 脸颊垫快速拆卸
固定带 Quick Release Buckle 下巴带扣类型
SHARP 碰撞评级 4/5 SHARP UK 冲击测试成绩已验证

Acoustics & Aerodynamics

噪音水平 87 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 N/A 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

Compare & buy

Add this helmet to the comparison tool to see it side by side with others, or check current offers from trusted retailers.

User Reviews

NO VERIFIED RIDER REVIEWS YET

Be the first to share your riding experience with this helmet.

5 stars
0
4 stars
0
3 stars
0
2 stars
0
1 stars
0

No reviews yet. Be the first to share your experience with this helmet!

More from LS2

VEHICLE SYNERGY & ERGONOMICS

Compatible Motorcycles for the FF406

Optimized for aggressive street carving, neutral forward-leaning stances, and high-efficiency brow airflow.

Aprilia 98% Match

RS 660 Extrema Carbon

Urban Roadster 660 cc 85 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 96% Match

RS 660 Extrema Carbon (Special Edition)

Urban Roadster 660 cc 89 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 94% Match

RSV4 Factory 1100 Ultra

Urban Roadster 1100 cc 150 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 92% Match

RSV4 Factory 1100 Ultra (Rally Edition)

Urban Roadster 1100 cc 154 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Data Confidence & Verification Provenance

Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.

Manufacturer Source
LS2 Official Specification
Safety Testing Agency
DOT FMVSS 218, ECE 22.06 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-20