Troy Lee Designs · D4 Composite
Troy Lee Designs D4 Composite
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
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.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
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
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Troy Lee Designs D4 Composite is a high-performance Dirt/MX helmet engineered by Troy Lee Designs to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.
Rider Profile & Intended Use
Where to buy
-
Amazon (US)
USD 424.95 View Deal →
📍 Tillamook, OR and online
Price History & Trends
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Product Concept & Specifications
Troy Lee Designs (United States)Engineering & Technical Analysis
Der Troy Lee Designs D4 Composite Helm prioritisiert die Sicherheit dank seines Verbundstoffgehäuses und der fortschrittlichen stoßdämpfenden Auskleidung und bietet hervorragenden Schutz für Dirt- und Motocross-Fahrten. Der Tragekomfort wird durch ein feuchtigkeitsableitendes Innenfutter und ein verstellbares Passformsystem verbessert, während optimierte Belüftungskanäle für effektiven Luftstrom sorgen, um Fahrer auch unter intensiven Bedingungen kühl zu halten. Die ovale Kopfform mit Zwischengröße passt sich einer Vielzahl von Fahrern an und bietet eine straffe Passform bei guter Tragekomfort über den ganzen Tag.
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
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.
Part numbers
| Product style | MFR. product # | SKU | Availability |
|---|---|---|---|
| Gloss Black / | — |
TRO-D4CO-BLK | instock |
| Anthracite / | — |
TRO-D4CO-GRE | instock |
| Course TC-3 / | — |
TRO-D4CO-COU | instock |
| Apex Grey / | — |
TRO-D4CO-APE | instock |
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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.