The Troy Lee Designs D4 Carbon Helmet further improves the class-leading D3 helmet with a new lighter weight, MIPS technology, and increased airflow. The D4 Carbon tips the scales at a measly 1000g and comes in six sizes for a nearly custom fit. The ultra-lightweight carbon fiber outer shell offers high-performance protection at a feathery weight—reducing the rider fatigue so common with heavier full-face helmets—while a whopping 16 high-flow intake and outlet ports direct massive airflow over the head. The X-static and XT2 padding is antimicrobial and wicks away moisture to keep the funk at bay and keep you cool and comfortable. The updated EPS and improved headform shape increase resistance to impacts, while the integration of MIPS C2 protection helps to protect against rotational forces—letting you test your limits with confidence.
| Core Material | EPS |
|---|---|
| Adjustable Visor | Yes |
| Closure system | Titanium D-Ring |
| Safety Certifications | CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11 |
| Intended Use | Enduro, Downhill, BMX |
| Weight | 1000g |
| Size | Extra Small | Small | Medium | Large | Extra Large | XX-Large |
|---|---|---|---|---|---|---|
| Head Circumference (cm) | 53 - 54 | 55 - 56 | 57 - 58 | 58 - 59 | 60 - 61 | 62 - 63 |
| Head Circumference (in) | 20 7/8" - 21 1/4" | 21 5/8" - 22” | 22 3/8" - 22 3/4" | 22 3/4" - 23 1/4" | 23 5/8" - 24" | 24 3/8" - 24 3/4" |
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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We strive to get you the gear you want at a competitive price. If you find an item we offer from a competitor at a lower price, let us know. We will do our best to instantly match their price. To qualify for the Price Match, your purchase must meet the following conditions:
All helmets aren't created equally and when it comes to your brain, it doesn't pay to be cheap. If there is one thing that you should absolutely never pinch pennies on, it is your helmet. There are many helmets out there from brands who haven't done proper testing that lack safety features in order to be the least expensive consumers. There are also affordable options out there that are packed full of safety features that you might not have known existed.
There are so many different avenues that you can take to purchase a new bike, so what sets us apart from them? Why buy a bike from us?
Here at Jenson USA, we take great pride in making sure that your bike buying experience is confidence inspiring and trouble-free from start to finish. We want to be absolutely sure that we are providing the best possible service we can to each and every one of our customers so that there are no questions when purchasing a new bike from us!
With Bike Park season officially kicking off all across the world, we thought it might be a good idea to put together a video discussing some of the best full face helmets for 2023.
At Jenson USA, it's important to us to support those who are helping build the community of riders and sharing their experiences with others. To that end, we've built an arsenal of Ambassadors that we help to support.
These ambassadors are the pedal-pounding aficionados, building a following of fellow riders across social platforms; they're the lifeblood of our cycling community. Their stories inspire, their passions unites – Their the glue that binds us all. Meet some of the Ambassador crew.
ANGi is a helmet-mounted sensor that measures the forces transmitted to your helmet during a crash, as well as the harmful rotational forces that occur during crashes when your helmet doesn't actually impact the ground. Head into our informational blog article to learn all about this innovative safety tech for your rides.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to 
