Troy Lee Designs D4 Lowrider Composite MIPS Downhill Helmet

Troy Lee Designs D4 Low Rider Composite MIPS Downhill Helmet

The Troy Lee Designs D4 Composite helmet continues to evolve through advanced engineering, offering state-of-the-art protection for downhill performance. Its aerospace-grade composite shell construction keeps weight to only 1050 grams without compromising structural stability. The integrated Mips® C2 rotational-impact protection system adds an additional layer of safety in the event of a crash, while a dedicated ventilation layout channels cooling air through forward intake ports, the polymer center grille, and the power-grid side mesh to maintain an optimal riding temperature. Inside, antimicrobial and odor-resistant X-Static® and XT2® padding ensures long-lasting comfort.

Features:

• Mips® C2 Brain Protection System for rotational-impact mitigation
• Three carbon shell sizes with multiple pad options for incremental sizing
• X-Static and XT2 removable and washable comfort liner with moisture-wicking materials
• 3D cheek pads with Emergency Release System for an anatomical fit
• Precision-mounted headliner with seven anchor points for optimized adjustment
• Updated EPS structure for improved impact performance in critical zones
• EPP Collarbone Impact System with a relief zone to reduce forces in collarbone/shoulder contact
• Front intake ventilation with high-flow polymer grille, side Power-Grid mesh, and a total of 24 vents

Specifications:

• Material: Composite outer shell available in three sizes (XS/S - M/L - XL/XXL)
• Closure: Double-D ring
• Weight: 1050 g ± 50 g
• Certification: CPSC 1203 / EN 1078 / ASTM F1952 – DH / ASTM 2032 – BMX (depending on regional standards)
• Equipped with Mips®

Contents:

• 1× Troy Lee Designs D4 Low Rider Composite MIPS Downhill Helmet
• 1× Helmet bag