The Troy Lee Designs D4 Carbon Helmet represents the pinnacle of full-face mountain bike protection, combining cutting-edge safety technology, lightweight carbon construction, and championship-proven performance. Developed with input from elite downhill and freeride athletes, the D4 Carbon is engineered for riders who demand the highest levels of protection, comfort, and confidence on the world’s most challenging terrain.
Featuring an advanced aerospace-grade carbon fiber shell, the D4 Carbon achieves exceptional strength while minimizing weight, helping reduce rider fatigue during long race days and bike park sessions. Inside, a dual-density EPS impact liner works alongside the Mips® C2 Brain Protection System to help manage both direct and rotational impact forces, providing comprehensive protection when it matters most.
The D4 Carbon’s advanced ventilation system includes strategically positioned intake and exhaust ports paired with deep internal airflow channels to maximize cooling and comfort during intense efforts. X-Static® XT2 antimicrobial comfort padding effectively manages moisture and odor, while the quick-release cheek pad system allows for easy emergency helmet removal and convenient cleaning.
Designed for seamless integration with modern goggles and neck braces, the D4 Carbon delivers a secure fit, expansive field of vision, and premium rider comfort. Whether you’re racing downhill, sending massive freeride lines, or charging technical enduro stages, the D4 Carbon Helmet offers uncompromising performance at the highest level.
Features:
Lightweight aerospace-grade carbon fiber shell construction
Mips® C2 Brain Protection System for enhanced rotational impact protection
Dual-density EPS impact liner for comprehensive energy management
Advanced ventilation system with multiple intake and exhaust ports
Deep internal airflow channels for maximum cooling efficiency
X-Static® XT2 antimicrobial, moisture-wicking comfort liner
Quick-release cheek pads for emergency removal and easy maintenance
Titanium D-ring retention system for secure closure
Large eye port for optimal goggle compatibility and field of vision
Neck brace compatible design
Lightweight race-ready construction for downhill, freeride, and enduro competition
Meets or exceeds major bicycle helmet safety certifications
