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First Look: Troy Lee Designs 2019 SE4 Polyacrylite Motocross Helmets

Chaparral Motorsports
August 6, 2018
Last Updated: August 31, 2020

Your head is the more important body part you need to protect when it comes to riding a dirt bike. From low speed tip overs to coming up short on a 30 foot gap, no matter how you fall there is always the chance for an impact to your head which can lead to serious medical issues. It used to be that if you wanted a motocross helmet that was lightweight, provided excellent ventilation, and utilized the latest in impact protection technology you had to spend an arm and a leg to get it. Well as they say, things change and as manufacturing practices and materials get less expensive so does the cost of a high quality helmet that offers great safety features-as evidenced by Troy Lee Designs' line of SE4 Polyacralite helmets.

Weighing in at 1500 grams, the helmets feature a polyacrylite shell that not only helps keep the overall weight down but is extremely strong. Inside there is the acclaimed MIPS (Multi-directional Impact Protection System) that handles double duty of lessening the shock of the initial impact as well as aiding against rotational forces to the brain. Overheating won't be an issue either as the helmet has a tons of venting to allow air to flow into the helmet and then push the heat out through the rear exhaust ports. Best of all, you get all these features packed into a dirt bike helmet that only costs $250. The SE4 has become a highly popular helmet for both motocross racers and the casual dirt bike rider and for 2019 Troy Lee Designs has released five new graphics: Metric Black, Jet, Baja, Factory Ocean, and Team Edition 2. You can see all the features and colorways of the new SE4 Polyacrylite Helmet below and to check out the rest of our Troy Lee Designs gear visit

SE4 Helmet Features:

MIPS brain protection system, reduces rotational forces to the brain
EPP (Expanded Polypropylene) Chin bar for lightweight, durable protection
Three shell sizes to more accurately fit a variety of head sizes and rider ages, improving overall safety
Anatomical "3D" contoured cheek pads with emergency release system for EMS responders
16 intake ports to channel cool air around and over a rider's head
Six rear exhaust ports
Plastic visor screws and brass inserts for easy impact break-away
Stainless steel D-Rings are both light and strong
Comes with TLD drawstring helmet sock
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