Global Helmet Intelligence Platform

ILM · 726X

ILM 726X Vortex TC-5

SPÉCIFICATION TECHNIQUE VÉRIFIÉE Full Face DOT ABS 1550g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Intégral
Certifications DOT
Measured Weight 1550 g
Shell Material ABS
Head Shape Fit Intermediate Oval
Retention System Not verified
SAFETY & CERTIFICATIONS

Verified Safety Snapshot

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

Certified Homologation ✓ DOT
Rotational Protection Not specified
SHARP Impact Score Not tested by SHARP
Retention Mechanism Not verified
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.

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

"Riding Made Accessible"

Casque intégral ultra-économique avec boucle à déclenchement rapide et écran antibuée.

The ILM 726X Vortex TC-5 is engineered as a high-integrity Full Face protective system by ILM, utilizing a structural shell constructed from ABS. 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 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, drop-testing velocity, and anvil geometries, consult our engineering guide on ECE 22.06 vs DOT vs SNELL helmet safety standards.

Internal ergonomics follow a Intermediate Oval cranial geometry, sculpted 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 our authoritative cranial aspect ratios and head shape guide as well as the cheek pad density and break-in protocol.

Cabin acoustics and airflow dynamics record an acoustic rating of approximately low-turbulence 84 dB at 100 km/h, stabilized by channelized EPS internal porting and laminar aerodynamic profiling. To analyze how shell materials withstand environmental fatigue and mechanical stress under prolonged UV and thermal exposure, explore our composite shell material comparison.

Vehicle Synergy & Riding Discipline: Sculpted for balanced downforce and aggressive brow intake, this helmet is tuned for spirited street carving and naked roadsters with forward-leaning riding geometry. Operating at 1550 grams, the helmet achieves a neutral center of gravity that significantly counteracts cervical spine fatigue during sustained highway riding. Inspect our comprehensive motorcycle compatibility directory for verified windscreen and postural pairings.

Rider Profile & Intended Use

Riding Style Commuter
Helmet Category Intégral
Internal Fit Shape Intermediate Oval
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Où acheter

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Historique et tendances des prix

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Product Concept & Specifications

ILM (International)

Engineering & Biomechanical Safety Analysis

The ILM 726X Vortex TC-5 features an ABS shell for lightweight durability and a TC-5 composite layer for enhanced impact protection. Its intermediate oval head shape ensures a snug fit, while adjustable ventilation channels promote airflow for comfort in varying conditions. The full-face design offers comprehensive coverage, and the interior padding is designed for breathability and moisture-wicking to reduce fatigue during long rides.

The ILM 726X Vortex TC-5 is engineered as a high-integrity Full Face protective system, utilizing a structural shell constructed from ABS. 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 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.

Construction de la coque ABS Matériau structurel extérieur
Measured Weight 1550 g (3.42) Poids approximatif en taille moyenne
Warranty 5 Years Durée de la couverture du fabricant
Cas d’utilisation principal Commuter Orientation de conduite optimisée

Safety & Certifications

Certification DOT Norme de sécurité certifiée
Rotational Protection Not specified Atténue l'impact rotationnel
Déverrouillage d’urgence Not specified Retrait rapide des mousses de joues
Sangle de rétention Not verified Type de boucle de jugulaire

Acoustics & Aerodynamics

Niveau sonore Non testé Bruit du vent mesuré à vitesse élevée
Ventilation Non testé Évaluation des performances de ventilation
Testé en soufflerie Not specified Aérodynamisme optimisé de la calotte
Pinlock antibuée Non inclus Insert antibuée pour visière

Technology & Convenience

Intégration des communications N/A Disponibilité d’une découpe pour intercom
Compatible avec les lunettes Not specified Rainures pour lunettes dans la doublure intérieure
Système de visière Not verified Écran solaire intégré escamotable
Intérieur amovible Not verified Modules de doublure lavables

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More from ILM

VEHICLE SYNERGY & ERGONOMICS

Compatible Motorcycles for the ILM 726X Vortex TC-5

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

Aprilia 98% Match

RS 457 Supersport (Race Replica)

Urban Roadster 457 cc 47.6 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 96% Match

RS 660 Extrema Carbon

Urban Roadster 660 cc 85 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 94% Match

RS 660 Extrema Carbon (Special Edition)

Urban Roadster 660 cc 89 hp

Aerodynamic and posture alignment certified for Aprilia riders.

Aprilia 92% Match

RSV4 Factory 1100 Ultra

Urban Roadster 1100 cc 150 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
ILM Official Specification
Safety Testing Agency
DOT Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-09-21