Troy Lee Designs D4 Helmet
Best premium full face protection for dedicated downhill mountain bikers.
A high-performance full-face lid designed for the rigors of downhill and BMX racing. It balances a lightweight polyacrylite shell with advanced rotational impact protection, ensuring riders stay safe without feeling weighed down on the track.
$415.00
at
Troyleedesigns
More D-Series options
Who it's for
- Downhill racers seeking top-tier head protection and peace of mind
- Mountain bikers riding in hot climates or high-intensity race conditions
- Frequent riders who prioritize a plush feel and easy maintenance
Who should skip it
- Weight-conscious athletes who prefer the lightest possible gear
- Smaller riders concerned about a streamlined profile and perfect scale
- Performance enthusiasts looking for premium, corrosion-resistant titanium components
Performance breakdown
Impact Protection
Mips C2 integration provides top-tier rotational energy management for serious crashes.
Ventilation Efficiency
High-flow intake system keeps riders cool during intense, high-speed downhill runs.
Structural Integrity
Polyacrylite shell offers robust durability without the weight of carbon fiber.
Emergency Readiness
Quick-release cheek pads allow for safe, rapid removal by medical personnel.
Fit Customization
Removable padding ensures a precise, stable fit for varied head shapes.
Collarbone Security
Integrated suspension system adds a crucial layer of protection during impacts.
Key Specs
Safety Technology
Mips C2 Rotational Impact Brain Protection System
Shell Material
Polyacrylite
Helmet Style
Full Face
Intended Use
Downhill, BMX
Visor Type
Breakaway
Removable Padding
Yes
Aerodynamic Design
Yes
Impact Layer
EPP chin bar
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