D4 Polyacrylite Helmet
The D4 line’s everyday full-face option, built around TLD’s unmistakable downhill profile.
Prices are a snapshot from when this page was built — confirm on the retailer's site.
Story & heritage
Troy Lee Designs' own paint-history page places the D3 after Daytona and D2, then frames the modern full-face lineage as a safety-and-design playbook for fast racers. Current D4 listings carry that lineage forward in Carbon, Composite, and Polyacrylite shells.
Official Troy Lee Designs product data identifies this current product family, its imagery, and its USD offer price.
Materials & craft
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.
The gallery uses official Troy Lee Designs product imagery for this exact product page, keeping the angles, details, and colourway tied to the live listing.
How to choose & style
Choose D4 Polyacrylite Helmet when the kit needs to read as Troy Lee Designs at speed: graphic enough for the track or trail, but grounded in a single purposeful silhouette.
Pair the louder colourways with quieter jerseys and pants, or use a monochrome version as the anchor for a full TLD race kit.
