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Just a little bit cooler.

Troy Lee Designs helmets have always had that one-off custom mystique. There are mountain bike helmets, and then there are Troy Lee helmets. It’s tough to nail down a reason, exactly. It could be the incredible graphics, the amazing attention to detail, or, in the case of the D3, the fact that, instead of a flimsy little adjustment strap, the D3 is built with full incremental sizing, like a true custom. Whatever the reason, a Troy Lee helmet is always cooler than the helmet the guy standing next to you is wearing.

The D3 CF is made from carbon fiber. It’s lightweight and incredibly durable. Because this is the carbon fiber version, the hardware that’s spec'd is titanium. It also comes with an extra visor, just in case you smash the first one into a tree, or maybe a podium.

The D3 employs dual-density shock pads for your comfort and safety, and it meets or exceeds CPSC 1203, CE EN 1077, CE EN 1078, ASTM F1952, and ASTM F2040 safety standards. All those standards mean you have the best possible protection. The liner is removable and washable, and it's made with CoolMax and Dri-Lex moisture-wicking materials.

The D3 is built with 20 intake and exhaust ports to keep cooling air flowing through the helmet at all times. Together with a new, deeper EPS channeling system, the D3 keeps your head as cool as possible, in more ways than one.

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

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Troy Lee Designs D3 Carbon Fiber Helmet

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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.