Description
Troy Lee Designs – D4 Polyacrylite Stealth Helmet (MTB)
D4 Polyacrylite Stealth Helmet is a Troy Lee Designs mountain bike helmet built for trail riders. The D4 platform is known for downhill-focused coverage and a locked-in feel when the terrain gets steep and fast. The Polyacrylite shell helps keep the price more approachable while still delivering the coverage riders expect. In the Stealth colorway, it brings a strong visual identity without losing the performance-first focus of the helmet.
That combination of coverage and ventilation makes it a natural match for riders who move between trail networks, rocky descents, and bike-park days through the season.
Why We Like It: it balances mountain bike protection with the kind of ventilation and fit that keeps longer rides from feeling like work.
Why It’ll Work for You: It works well for riders who split time between trail loops, enduro stages, and lift-served laps and want one mountain bike helmet that feels ready for all of it.
Variants / Options: multiple sizes and colorways available; check the selector for current stock.
Key Features:
- as the premium carbon and composite models into a price-conscious shell. Details make the D4 the most coveted full-face in mountain biking, including Mips® C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit.
- This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.
- Specifications
- Mips® C2 Rotational Impact Brain Protection System
- Advanced Polyacrylite shell construction
- Front air intake system, with high flow through polymer center and power grid side mesh
- Collarbone Suspension System
- Breakaway visor screws
- Anti-microbial padding
- Quick release contoured 3D cheek pads for anatomically optimized fit
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