Troy Lee Designs – D4 Polyacrylite Qualifier Helmet (MTB)

The reigning king of full-face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort 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.

Specifications: It adds mips c2 rotational impact brain protection system for confidence when terrain changes or the pace picks up. You get advanced polyacrylite shell construction for confidence when terrain changes or the pace picks up. Theres front air intake system, with high flow through polymer center and power grid side mesh for confidence when terrain changes or the pace picks up. Engineered with collarbone suspension system for confidence when terrain changes or the pace picks up. Backed by breakaway visor screws for confidence when terrain changes or the pace picks up. Designed for anti-microbial padding for confidence when terrain changes or the pace picks up. The design emphasizes Magnajust visor, helping the helmet feel cool, quiet, and secure over longer rides.

Why We Like It:

Comfort lands where it counts: steady shell feel, pads that settle in cleanly, and airflow you actually notice when speed drops. Vents move air at trail speed, not just in a wind tunnel, so ventilation keeps you cool at slower speeds on slow tech. You get the TLD blend of sharp…

Why Itll Work for You:

This helmet solves the usual hangups: a fit that dials quickly, cooling you can feel at lower speeds, and impact management tuned for both straighton and offangle hits. If youre new to the category, think of it as a simple upgrade in safety and comfort – easy to clean, easy to maintain, and shaped to work with goggles or sunglasses without fuss. Its a practical, highcoverage option for daily riding and bigger weekends when pace and terrain change.

Variants / Options:

Colors: Black/Yellow, Blue/White | Sizes from XS to 2X

Key Features:

• 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