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.
F
- Mips C2 Rotational Impact Brain Protection System
- Advanced Polyacrylite shell construction
- Front air intake system
- High flow through polymer center and power grid side mesh
- Collarbone Suspension System
- Breakaway visor screws
- Antimicrobial padding
- Quick release contoured 3D cheek pads for anatomically optimized fit
S
Head CircumferenceInches | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 25v |
Hat | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 |
CM | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 |
Troy Lee D4 Polyacrylite MIPS Helmet