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Troy Lee Designs D3 Carbon Fiber Helmet


Item # TLD001F

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  • Pinstripe II, XS ($449.95)
  • Pinstripe II, S ($449.95)
  • Pinstripe II, M ($449.95)
  • Pinstripe II, L ($449.95)
  • Pinstripe II, XL ($449.95)
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  • Speeda Yellow, XS ($449.95)
  • Speeda Yellow, S ($449.95)
  • Speeda Yellow, M ($449.95)
  • Speeda Yellow, L ($449.95)
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  • Speeda Yellow, XXL ($449.95)
  • Evo Gray, XS ($449.95)
  • Evo Gray, S ($449.95)
  • Evo Gray, M ($449.95)
  • Evo Gray, L ($449.95)
  • Evo Gray, XXL ($449.95)
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Item # TLD001F

Beyond refined.

You’ll find the Troy Lee Designs D3 Carbon Fiber Helmet on the heads of many of mountain biking’s greats, and it’s not exactly a mystery as to why. First, there’s TLD’s storied heritage, which alone would be enough to keep its helmets on the heads of the sport's elite. Then there’s the fact that it exceeds every relevant helmet safety standard. And finally, between TLD’s eye-catching graphics, and the stunning shell shape, it’s arguably the sweetest looking lid ever built. Whatever reason you pick, the result is the same — you’ll be wearing what just may be the ultimate full face helmet.

The D3 CF is made with Troy Lee's carbon fiber shell. Carbon fiber has become the dream material for helmets because of its light weight and incredible durability. This being the carbon version, it’s accented with titanium hardware for light weight, strength, and additional bling. The helmet comes with two visors, so you can pop a new one on in the event of a visor-smashing digger. TLD also threw in a custom helmet bag to protect the incredible paint jobs that the D3 sports.

Full incremental sizing, rather than a cheesy adjustment system, gives the D3 a completely custom feel. Dual-density shock pads provide luxurious comfort and unprecedented protection. Thanks to an intelligent design, the D3 exceeds CPSC 1203, CE EN 1077, CE EN 1078, ASTM F1952, and ASTM F2040 safety standards. In other words, you’re giving your brain the absolute best chance of walking away from harrowing crashes unscathed. Troy Lee's comfort liner is completely removable, washable, and replaceable, so you don't have to buy a new if the liner gets irreparably funky. The liner is also made with CoolMax and Dri-Lex moisture-wicking materials to keep your head dry and cool while you ride. And Troy Lee also equipped the D3 with quick-release cheek pads to make the helmet easier to remove in case of an emergency.

Troy Lee didn't stop at padding to make the D3 the most comfortable helmet on the market. The D3's ventilation system keeps the air flowing with an advanced intake/exhaust system. Twenty high-flow intake and exhaust ports, together with a new, deeper EPS channeling system provide cooling airflow through the helmet.

The Troy Lee Designs D3 Carbon Fiber Helmet comes in six sizes, from X-Small to XX-Large, and is available in the colors Finishline, Gwin Replica, Pinstripe II, and Speed.

  • Carbon fiber shell
  • Titanium hardware
  • Extra visor included
  • Full incremental sizing
  • Washable CoolMax and Dri-Lex liner
  • Twenty intake and exhaust ports

Tech Specs

Shell Material:
carbon fiber
Recommended Use:
downhill, freeride, enduro
CPSC 1203, CE EN 1077, CE EN 1078, ASTM F1952, ASTM F2040
Manufacturer Warranty:
1 year
Multiple Impact:

Size chart

Troy Lee Designs

Bike Helmets
Head Circumference 21.3 - 22in
(54 - 56cm)
22.4 - 23.2in
(57 - 59cm)
22.6 - 24.8in
(60 - 62cm)
Hat Size 6 3/4 - 7 7 1/8 - 7 3/8 7 1/2 - 7 7/8
Head Circumference 20.5 - 20.9in
(52 - 53cm)
21.3 - 21.7in
(54 - 55cm)
22 - 22.4in
(56 - 57cm)
22.8 - 23.2in
(58 - 59cm)
23.6 - 24.4in
(60 - 62cm)
24.8 - 25.6in
(63 - 65cm)
US Hat Size 6 1/2 - 6 5/8 6 3/4 - 6 7/8 7 - 7 1/8 7 1/4 - 7 3/8 7 1/2 - 7 3/4 7 7/8 - 8 1/8
Head Circumference 21 - 22in
(53 - 55cm)
22.4 - 23.3in
(56 - 59cm)
23.7 - 24.5in
(60 - 62cm)
US Hat Size 6 1/2 - 6 7/8 7 - 7 3/8 7 1/2 - 7 3/4
How to Measure:
With a tape measure, measure the widest point of your head, approximately 1 inch above your eyebrows.

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Here's what others have to say...

2 5


I unfortunately had to return the D3 Pinstripe. First I noticed that the cheek pads seemed a little too loose. Secondly, the padding around the back and back sides is too thin. When pressure was applied in these areas, it hurt. I didn't want to risk taking a hit in these areas with this helmet so it was returned. Other than the previous mentioned issues the D3 did fit well. The Giro Cipher though, is a much better helmet in my opinion.