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Troy Lee Designs · D4 Composite · Troy Lee Designs D4 Composite

Troy Lee Designs D4 Composite Apex Grey

DOT ECE 22.06
Troy Lee Designs D4 Composite Apex Grey
Troy Lee Designs D4 Composite Apex Grey
Troy Lee Designs D4 Composite Apex Grey

Design Concept & Background

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Troy Lee Designs D4 Composite Apex Grey 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

Riding Style Dirt/MX
Helmet Category Dirt/MX
Internal Fit Shape Intermediate Oval
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Best price $474.95 Amazon (US)
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Product Concept & Specifications

Troy Lee Designs (United States)

Engineering & Technical Analysis

The Troy Lee Designs D4 Composite helmet offers advanced safety with its composite shell and impact-absorbing EPS foam, while its intermediate oval head shape ensures a secure, comfortable fit. Ventilation is optimized with multiple intake and exhaust ports to keep riders cool, and the helmet's lightweight design enhances comfort during long rides. The D4 Composite is specifically engineered for dirt and MX riding, balancing protection and performance.

Fit & Shell Structure

Intermediate Oval Shape

Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.

[MATR.SHEL] Shell Construction Composite Outer structural material
[PHYS.MASS] Measured Weight 1200g (2.65) Approximate medium size weight
[COVG.YEAR] Warranty 1 Manufacturer coverage duration
[OPER.ROLE] Primary Use Case Dirt/MX Optimized riding orientation

Safety & Certifications

[SYS.CERT] Homologation DOT, ECE 22.06 Certified safety standard
[SYS.PROT] Rotational Protection Standard EPS Mitigates rotational impact
[SYS.EQRS] Emergency Release Not Equipped Cheek pad quick removal
[SYS.LOCK] Retention Strap Double D-Ring Chin strap buckle style

Acoustics & Aerodynamics

N/A
Acoustics
N/A /10
Ventilation

Aero-acoustic profile pending track testing. Ventilation flow score awaiting CFD test.

[AERO.TEST] Wind Tunnel Tested No Optimized shell aerodynamics
[VISR.FOG] Pinlock Tech Not Included Anti-fog shield insertion

Technology & Convenience

[SYS.COMM] Comms Integration Generic Speaker Cutouts Intercom cutout availability
[FIT.GLASS] Glasses Friendly No Inner lining eyewear grooves
[VISR.SYS] Visor Shield Tech Single Visor Integrated drop-down sun visor
[FIT.LINR] Removable Interior Partial / Fixed Washable lining modules

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