Troy Lee D4 Polyacrylite Block MIPS MTB Helmet
$369.99
$191.99 - $295.99
48% off
Troy Lee D4 Polyacrylite Block MIPS MTB Helmet Item # 1087159

Description
The Troy Lee D4 Polyacrylite Helmet - Block Edition - with MIPS technology is the reigning King of MTB Full Face protection.
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.
Features:
- MTB Preferred style: Downhill, BMX
- 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
Note: Not intended for use with motorized vehicles
Part Numbers for Troy Lee D4 Polyacrylite Block MIPS MTB Helmet
Reviews
Rated 5 out of
5
by
teknullog from
Our favorite helmets
We love Troy Lee D4 helmets. We’ve owned many because our son has a gift for landing on his hand. They’ve kept him safe in the Bike Park. We just make sure to replace them after a big crash.
Date published: 2025-09-01
Rated 5 out of
5
by
Andrew from
Troy Lee helmet fit perfectly! Great brand/price.
Awesome helmet for the money. Perfect fit too. Hard to find a quality helmet for $200
Date published: 2025-05-12
Rated 5 out of
5
by
Chickerana from
Like behind a stone wall.
Fits perfectly, you can feel it's quality from the first touch and sight. True DH helmet.
Date published: 2025-05-12