Elevate Your Ride with Advanced Protection & Comfort

The Troy Lee Designs D4 Composite Full Face Helmet sets the bar for lightweight durability, ventilation, and safety. Engineered with an aerospace shell design, Mips® C2 protection, and enhanced impact performance, the D4 Composite offers the perfect balance of strength, comfort, and ventilation for aggressive riders pushing their limits.

Key Features

• Mips® C2 Protection System – Reduces rotational forces in the event of an impact for enhanced rider safety.
  
• Aerospace Composite Shell – Strong yet lightweight at just 1050g, without sacrificing protection.
  
• Optimized EPS Headform – Improved impact performance for superior crash protection.
  
• Unrivaled Ventilation – 20 high-flow intake and exhaust ports keep air circulating for a cooler ride.
  
• Comfort-Focused Design
  
• Strategically placed chinbar shock pads for added comfort and durability.
  
• X-Static® & XT2® anti-microbial padding prevents odor buildup.
  
• Quick-Release 3D Cheek Pads – Enables emergency helmet removal when needed.
  
• Audio Integration Ready – Purpose-built internal cavities for easy speaker installation.
  
• Durable Stainless Steel D-Ring Closure – Lightweight, strong, and reliable.
  
• Includes TLD Drawstring Helmet Sock – Keep your lid protected when not in use.
  
• Certified for High-Speed Protection
  

Exceeds top industry safety standards:

• CPSC 1203
  
• CE EN 1078:2002 A1:2012
  
• ASTM F1952-15 (Downhill MTB)
  
• ASTM F2032-15 (BMX)
  
• ASTM F2040-11

Designed for Speed. Built for Safety.
From World Cup Downhill to freestyle BMX, the D4 Composite delivers the perfect blend of lightweight durability, breathability, and protection—so you can ride harder, longer, and with more confidence.