Global Helmet Intelligence Platform

LS2 · Stream 2

LS2 Stream 2 Matt Schwarz

VERIFIZIERTE TECHNISCHE SPEZIFIKATION Full Face ECE 22.06, DOT KPA 1550g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integralhelm
Certifications ECE 22.06, DOT
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"

Domina la carretera con el LS2 Stream 2 Matte Black, un casco integral que combina a la perfección un estilo agresivo con una seguridad sin concesiones. Diseñado para el motociclista moderno que exige rendimiento sin sacrificar la estética, este casco presenta un elegante acabado mate que corta el viento con una aerodinámica excepcional. En su interior, encontrarás una carcasa Intermediate Oval moldeada con precisión para un ajuste ceñido y seguro, garantizando la máxima estabilidad durante maniobras a alta velocidad. El avanzado sistema de ventilación canaliza el flujo de aire de manera eficiente, manteniéndote fresco en viajes largos, mientras que el visor solar integrado ofrece protección instantánea contra el deslumbramiento. Ya sea que estés recorriendo las calles de la ciudad o enfrentando autopistas abiertas, el Stream 2 ofrece una experiencia de conducción premium definida por su construcción robusta, durabilidad ligera y diseño atemporal.

Rider Profile & Intended Use

Riding Style Street
Helmet Category Integralhelm
Internal Fit Shape Intermediate Oval
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Product Concept & Specifications

LS2 (Spain)

Engineering & Biomechanical Safety Analysis

El LS2 Stream 2 utiliza un diseño de carcasa aerodinámica optimizada para reducir el ruido del viento y la resistencia a altas velocidades en autopista. Su revestimiento interno de EPS está diseñado con una estructura de densidad múltiple para proporcionar una absorción de impactos superior manteniendo un perfil ligero, complementado con un sistema de almohadillas laterales totalmente extraíbles y lavables para mayor higiene y comodidad.

The LS2 Stream 2 Matt Schwarz 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 ECE 22.06, DOT 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.

Schalenkonstruktion KPA Äußeres Strukturmaterial
Measured Weight 1550 g (3.42) Ungefähres Gewicht in mittlerer Größe
Warranty 2 Years Dauer der Herstellergarantie
Hauptanwendungsbereich Street Optimierte Fahrorientierung

Safety & Certifications

Zertifizierung DOT, ECE 22.06 Zertifizierter Sicherheitsstandard
Rotational Protection Yes (Rotational Mitigation) Reduziert Rotationsaufprall
Notentriegelung Not specified Schnellentnahme der Wangenpolster
Kinnriemen Double D-Ring Art des Kinnriemenverschlusses
SHARP-Aufprallbewertung 4/5 Verifizierte SHARP UK-Aufpralltestwertung

Acoustics & Aerodynamics

Geräuschpegel 87 dB Gemessene Windgeräusche bei Geschwindigkeit
Belüftung 7/10 Bewertung der Belüftungsleistung
Im Windkanal getestet Not specified Optimierte Helmschalen-Aerodynamik
Pinlock-Beschlagschutz Nicht enthalten Antibeschlag-Visiereinsatz

Technology & Convenience

Integration von Kommunikationssystemen Generic Speaker Cutouts Verfügbarkeit einer Aussparung für eine Gegensprechanlage
Für Brillenträger geeignet Not specified Brillenkanäle im Innenfutter
Visiersystem Not verified Integrierte herunterklappbare Sonnenblende
Herausnehmbares Innenfutter Not verified Waschbare Innenfuttermodule

Certification Documents & References

  • ECE 22.06 (EU) - Economic Commission for Europe - Reference
  • DOT FMVSS 218 (USA) - National Highway Traffic Safety Administration - 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
LS2 Official Specification
Safety Testing Agency
ECE 22.06, DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-19