Overall great
"This helmet is pretty much everything you need riding downhill; firm, steady, stable and makes you feel confident."
You have a Jersey Print in your cart but the jersey is missing.
You have a Helmet Lettering in your cart but the helmet is missing.
Create an account to check out faster in the future and receive emails about your orders, new products, events and special offers!
D4 reigns king atop downhill podiums and BMX events across the globe. Available in carbon, composite and polyacrylite. Details are what makes the D4 the most coveted full-face in mountain biking. Prioritizing safety while balancing weight through premium construction and materials, D4 incorporates Mips®protection with an EPP chin bar and anatomical cheek pads with emergency release.
Couldn't load pickup availability
The Reigning King of Full-Face Helmets
This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.
SKU:174437001
- 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
- 1150G
- Quick release contoured 3D cheek pads for anatomically optimized fit
FREE Shipping on all orders over $99. For full details, visit our Shipping & Returns Page.

Overall rating: 4.8333335 / 5 from 6 reviews.
Review topics: ["helmet","adjustment"].
"This helmet is pretty much everything you need riding downhill; firm, steady, stable and makes you feel confident."
— Rodrigo A. (5/5)
"100% best helmet i ever had just super comfortable and looks amazing."
— Steven K. (5/5)
"Very light weight and breathable."
— chris b. (5/5)
"Stoked on the new lid. I’ve been using the (multiple) D3 for the last four seasons and loved that helmet but the new design fits even better and has better airflow"
— Jacob H. (5/5)
"This helmet is light enough and fits great! The visor adjustment is nice and simple. The only downside for this helmet is it doesn’t vent as well as some other helmets I have had in the past. On hot sunny days you will definitely find yourself wishing you didn’t get the all black helmet but you can’t beat the style of the classic TLD helmet."
— Kyle G. (4/5)
"Still waiting for the package"
— Rafa R. (5/5)
You're currently viewing our European store. Select your preferred Country/Region below for the best shopping experience.