Global Helmet Intelligence Platform

HJC · CL-17

HJC CL-17 Track TC-2

VERIFIZIERTE TECHNISCHE SPEZIFIKATION Full Face DOT, Snell M2015 Polycarbonate 1630g
CAD ARCHITECTURE BLUEPRINT

Empirical Geometry Profile · Verified Laboratory Cataloging

Quick Facts at a Glance

Category Integralhelm
Certifications DOT, Snell M2015
Measured Weight 1630 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
Rotational Protection Snell M2015
SHARP Impact Score Not tested by SHARP
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.

Intermediate Oval shape provides a snug, secure fit consistent with standard HJC sizing.

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

"Safety First"

The HJC CL-17 full-face helmet embodies the perfect blend of style and substance, engineered to deliver unparalleled performance and protection on the road. Its sleek, aerodynamic design slices through the air with ease, reducing wind buffeting and drag while maintaining a stylish, aggressive look. Advanced engineering has gone into every detail, from the lightweight polycarbonate shell to the multi-layered EPS liner, ensuring a snug, comfortable fit that's both secure and ventilated. The CL-17 features adjustable ventilation with intake and exhaust ports, optimizing airflow to keep the rider cool in varying conditions. With its Pinlock MaxVision-ready visor, riders can enjoy unobstructed vision in all lighting conditions, from bright sunlight to low visibility. Whether carving through twisties or cruising on the highway, the HJC CL-17 is the ultimate choice for riders who demand the best in style, performance, and protection.

Key Highlights:

Lightweight polycarbonate shell Advanced channeling ventilation system (ACS) Pinlock MaxVision ready Multi-layered EPS liner Removable and washable interior

Rider Profile & Intended Use

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

HJC (South Korea)

Engineering & Biomechanical Safety Analysis

Der HJC CL-17 Track TC-2 zeichnet sich durch eine leichte Polycarbonat-Schale mit fortschrittlicher Sicherheitstechnologie aus, darunter eine verstärkte Struktur für erhöhte Stoßfestigkeit. Die ovale Kopfform im Intermediate-Schnitt sorgt für einen eng anliegenden, komfortablen Sitz, während die mehrschichtige EPS-Innenschale den Schutz verbessert. Das Helm bietet hervorragende Belüftung durch verstellbare Luftstromöffnungen, um den Fahrer kühl zu halten, und das feuchtigkeitsableitende Innenfutter fördert den Komfort bei langen Fahrten. Das Integralhelm-Design bietet maximalen Schutz, und die TC-2-Variante ist mit einem speziellen Rennvisier für verbesserte Aerodynamik und Sicht ausgestattet.

The HJC CL-17 Track TC-2 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 DOT, Snell M2015 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 Polycarbonate Äußeres Strukturmaterial
Measured Weight 1630 g (3.59) Ungefähres Gewicht in mittlerer Größe
Warranty 1 Jahr Dauer der Herstellergarantie
Hauptanwendungsbereich Racing Optimierte Fahrorientierung

Safety & Certifications

Zertifizierung DOT Zertifizierter Sicherheitsstandard
Rotational Protection Snell M2015 Reduziert Rotationsaufprall
Notentriegelung Not specified Schnellentnahme der Wangenpolster
Kinnriemen Double D-Ring Art des Kinnriemenverschlusses

Acoustics & Aerodynamics

Geräuschpegel 92 dB Gemessene Windgeräusche bei Geschwindigkeit
Belüftung 8/10 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

Regional Legality & Compliance

🇺🇸 US Legal
Required: DOT

Meets or exceeds DOT FMVSS 218 standards.

Regional Legality Guidance

US

Status: legal

Required: DOT

Meets or exceeds DOT FMVSS 218 standards.

Certification Documents & References

  • DOT-FMVSS-218 (US) - Department of Transportation - Reference
  • Snell-M2015 (Global) - Snell Memorial Foundation - 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
HJC Official Specification
Safety Testing Agency
DOT, Snell M2015 Homologation Record
Verification Status
✓ Verified Data
Last Audit Date
2026-06-12