Improving upon the class-leading D3 helmet was no simple task, but Troy Lee Designs is never one to rest on its laurels. Built with an aerospace-grade composite shell, the new D4 Composite helmet weighs in at just 1050-grams without sacrificing any of the strength of the previous model. MIPS C2 protection system is used to mitigate rotational impacts, while the front air intake system with 24 vents keeps your head cooler than ever during intense rides. Washable X-static and XT2 anti-odor padding keep the inside of the helmet feeling fresh, and there's now an EPP collarbone impact system that helps reduce the forces transferred to this sensitive area.
Improving upon the class-leading D3 helmet was no simple task, but Troy Lee Designs is never one to rest on its laurels. Built with an aerospace-grade composite shell, the new D4 Composite helmet weighs in at just 1050-grams without sacrificing any of the strength of the previous model. MIPS C2 protection system is used to mitigate rotational impacts, while the front air intake system with 24 vents keeps your head cooler than ever during intense rides. Washable X-static and XT2 anti-odor padding keep the inside of the helmet feeling fresh, and there's now an EPP collarbone impact system that helps reduce the forces transferred to this sensitive area.
in 3 offers
Improving upon the class-leading D3 helmet was no simple task, but Troy Lee Designs is never one to rest on its laurels. Built with an aerospace-grade composite shell, the new D4 Composite helmet weighs in at just 1050-grams without sacrificing any of the strength of the previous model. MIPS C2 protection system is used to mitigate rotational impacts, while the front air intake system with 24 vents keeps your head cooler than ever during intense rides. Washable X-static and XT2 anti-odor padding keep the inside of the helmet feeling fresh, and there's now an EPP collarbone impact system that helps reduce the forces transferred to this sensitive area.
Improving upon the class-leading D3 helmet was no simple task, but Troy Lee Designs is never one to rest on its laurels. Built with an aerospace-grade composite shell, the new D4 Composite helmet weighs in at just 1050-grams without sacrificing any of the strength of the previous model. MIPS C2 protection system is used to mitigate rotational impacts, while the front air intake system with 24 vents keeps your head cooler than ever during intense rides. Washable X-static and XT2 anti-odor padding keep the inside of the helmet feeling fresh, and there's now an EPP collarbone impact system that helps reduce the forces transferred to this sensitive area.
Size
Last updated at 05/11/2025 20:26:42
Troy Lee Designs D4 Composite Helmet W/Mips Stealth Black lg
Free delivery between 10–15 Nov
Troy Lee Designs - D4 Composite Stealth MIPS Helmet (MTB) - Black 2XL
Delivery $67.70
Troy Lee Designs D4 Composite MIPS Helmet In Stealth Black
Delivery between 12–18 Nov $30.56
See 5 historical offers
Troy Lee Designs D4 Composite MIPS BMX Race Helmet-Stealth Tarmac, Adult X-Large
Troy Lee Designs Composite D4 Mips helmet Size M Colour Stealth Tarmac
Next-day delivery $136.32
Troy Lee Design D4 Composite MIPS Bicycle Helmet - Stealth Red / MD
| Biking Type | Mountain |
| Helmet Style | Full Face |
| Helmet Venting | Fixed Venting |
| Audio | Not Included |
| Visor | Yes |
Troy Lee Designs D4 Composite Helmet W/Mips Stealth Black lg
Free delivery between 10–15 Nov
Troy Lee Designs - D4 Composite Stealth MIPS Helmet (MTB) - Black 2XL
Delivery $67.70
Troy Lee Designs D4 Composite MIPS Helmet In Stealth Black
Delivery between 12–18 Nov $30.56
See 5 historical offers
Troy Lee Designs D4 Composite MIPS BMX Race Helmet-Stealth Tarmac, Adult X-Large
TLD 25 D4 COMPOSITE HELMET XLG / 2XL
Free delivery
Troy Lee Designs Composite D4 Mips helmet Size M Colour Stealth Tarmac
Next-day delivery $136.32
Troy Lee Design D4 Composite MIPS Bicycle Helmet - Stealth Red / MD
| Biking Type | Mountain |
| Helmet Style | Full Face |
| Helmet Venting | Fixed Venting |
| Audio | Not Included |
| Visor | Yes |
