Global Helmet Intelligence Platform

LS2 · Stream 2

LS2 Stream 2 Vortex TC-2

技术规格已验证 Full Face DOT, ECE 22.06 KPA 1550g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category 全盔
Certifications DOT, ECE 22.06
Measured Weight 1550 g
Shell Material KPA
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, ECE 22.06
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 4/5 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.

Designed for oval to intermediate head shapes; may feel tight on very round heads due to aggressive cheek pad design.

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"

Conquista la carretera abierta con el LS2 Stream 2 Vortex TC-2, un casco integral que combina a la perfección un estilo agresivo con una aerodinámica de vanguardia. Diseñado para el motociclista moderno que exige tanto rendimiento como presencia, este casco cuenta con una elegante carcasa de acabado mate con entradas de aire integradas que maximizan el flujo de aire mientras minimizan el ruido del viento. La avanzada tecnología Vortex crea una trayectoria de aire suave sobre la cabeza, reduciendo la resistencia y la fatiga en viajes de larga distancia. En su interior, el acolchado suave y transpirable garantiza la comodidad durante todo el día, mientras que el sistema de ajuste seguro te mantiene firme frente a las inclemencias del tiempo. Ya sea que estés recorriendo las calles de la ciudad o trazando curvas en la autopista, el Stream 2 Vortex TC-2 ofrece una seguridad sin concesiones sin sacrificar el estilo. Experimenta el equilibrio perfecto entre protección y rendimiento con un casco diseñado para la velocidad y creado para atraer todas las miradas.

Rider Profile & Intended Use

Riding Style 旅行骑行
Helmet Category 全盔
Internal Fit Shape Intermediate Oval
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价格历史与趋势

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Product Concept & Specifications

LS2 (Spain)

Engineering & Biomechanical Safety Analysis

El LS2 Stream 2 Vortex TC-2 utiliza un diseño de carcasa aerodinámica avanzada que incluye una mentonera generadora de vórtices que reduce significativamente el flujo de aire turbulento y el ruido del viento a velocidades de autopista. Internamente, el revestimiento EPS de densidad múltiple está zonificado estratégicamente para proporcionar una absorción de impactos superior manteniendo un perfil ligero, garantizando la integridad estructural sin comprometer la comodidad del piloto durante trayectos prolongados.

The LS2 Stream 2 Vortex TC-2 is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from KPA. 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 KPA 外部结构材料
Measured Weight 1550 g (3.42) 中号尺寸的大约重量
Warranty 2 Years 制造商保障期限
主要用途 旅行骑行 优化的骑行姿态

Safety & Certifications

认证 DOT, ECE 22.06 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 Double D-Ring 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 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

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