Global Helmet Intelligence Platform

LS2 · Thunder

Thunder Gloss White

GEVERIFIEERDE TECHNISCHE SPECIFICATIE Full Face ECE 22.05, DOT Polycarbonate 1288g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integraal
Certifications ECE 22.05, DOT
Measured Weight 1288 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, ECE 22.05
Rotational Protection Yes (Rotational Mitigation)
SHARP Impact Score 5/5 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.

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 Thunder Gloss White is engineered for responsive sport riding with pinpoint lateral stability, delivering responsive balance and confident road feel. Featuring a High-Yield Impact-Resistant Polycarbonate / Lexan architecture at a featherweight 1288g, it combines progressive kinetic energy dissipation across DOT, ECE 22.05 certifications with an acoustically tuned ~86 dB aero profile. A plush, washable 3D comfort liner cradles Intermediate Oval head shapes with zero temple pinch for glasses wearers, locked in securely with track-proven Double D-Ring retention.

Rider Profile & Intended Use

Riding Style Touring
Helmet Category Integraal
Internal Fit Shape Intermediate Oval
Real-time price tracking active across international retailers.

Waar te koop

Verkoper Prijs Availability
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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 Thunder Gloss White is engineered as a high-integrity Full Face 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 ECE 22.05, 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.

Schaalconstructie Polycarbonate Extern constructiemateriaal
Measured Weight 1288 g (2.84) Geschat gewicht bij maat M
Warranty 2 Years Dekkingsduur van de fabrikant
Primair gebruik Touring Geoptimaliseerde rijoriëntatie

Safety & Certifications

Certificering DOT, ECE 22.05 Gecertificeerde veiligheidsnorm
Rotational Protection Yes (Rotational Mitigation) Vermindert rotatie-impact
Noodontgrendeling Not specified Snelle verwijdering van wangkussens
Retentieband Double D-Ring Type sluiting van de kinband
SHARP-impactclassificatie 5/5 Geverifieerde SHARP UK-impacttestscore

Acoustics & Aerodynamics

Geluidsniveau 86 dB Gemeten windgeruis bij snelheid
Ventilatie 7/10 Beoordeling van de luchtstroomprestaties
In de windtunnel getest Not specified Geoptimaliseerde aerodynamica van de buitenschaal
Pinlock anticondens Niet inbegrepen Anticondens-inzetstuk voor vizier

Technology & Convenience

Integratie van communicatiesystemen Generic Speaker Cutouts Beschikbaarheid van uitsparing voor intercom
Geschikt voor brildragers Not specified Brillengleuven in de binnenvoering
Viziersysteem Not verified Geïntegreerd neerklapbaar zonnevizier
Uitneembare binnenvoering Not verified Wasbare voeringmodules

Certification Documents & References

  • ECE 22.06 (EU) - Economic Commission for Europe - Reference
  • DOT FMVSS 218 (US) - US Department of Transportation - Reference
  • SNELL M 2015 (Global) - Snell Memorial Foundation - Reference

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VEHICLE SYNERGY & ERGONOMICS

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RS 457 Supersport (Explorer Pack)

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Aprilia 92% Match

RS 660 Extrema

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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 22.05, DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-20