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Troy Lee Designs

Troy Lee Designs SE4 Polyacrylite Adult Motocross Off-Road Dirt Bike Helmet with MIPS

  • Based on 274 reviews
Condition: New
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$189.00 Why this price?

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Jul 27
Order within 16 hours and 36 minutes
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Color: Carb, Black


Size: Large


Features

  • NEW RACE/OFF ROAD: performance full face helmet - ultimate in coverage, comfort
  • VENTILATED: 16 cooling vent ports, chin bar featuring EPP (Expanded Polypropylene) Collarbone ventilation system
  • REMOVABLE/WASHABLE: liners and cheek pads interchangeable for a customized fit. Six standard sizes
  • COVERAGE: Lightweight MIPS. Meets DOT FMVSS 218 Standard
  • Troy Lee Designs: 40 years of racing for the World's Fastest Racers

Color: Carb, Black


Brand: Troy Lee Designs


Vehicle Service Type: ATV, Motorcycle


Item Weight: 1500 Grams


Material: Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS), Polypropylene (PP)


Brand Name: Troy Lee Designs


Manufacturer: Troy Lee Designs


Model Name: SE4 Polyacrylite Helmet W/MIPS


UPC: 887202344008


Number of Items: 1


Manufacturer Part Number: 109251004


Warranty Description: 3 Year Manufacturer


Unit Count: 1.00 Count


Included Components: Visor


Model Number: 109251


Color: Carb, Black


Shape: Oval


Compatible with Vehicle Type: ATV, Motorcycle


Sport Type: Motocross


Number Of Vents: 22


Closure Type: Double Ring


Material Type: Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS), Polypropylene (PP)


Finish Type: Glossy


Shell Type: Hard


Item Weight: 1500 Grams


Certificate Type: ECE 22.06, FMVSS 218


Specification Met: DOT, ECE


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Amazing Protection and Comfort — Worth Every Penny!
I’ve been using the Troy Lee eBike helmet for a few weeks now, and it’s easily the best helmet I’ve owned. The build quality feels super solid and premium — you can tell it’s made for serious riders. It’s lightweight, well-ventilated, and doesn’t feel bulky, even on longer rides. The coverage around the back of the head gives me extra confidence when hitting trails or riding through the city. The fit adjustment dial is smooth and makes it easy to get a snug, secure fit without pressure points. Plus, the design just looks awesome — it has that aggressive, sleek Troy Lee look that stands out. ... show more
Reviewed in the United States on October 19, 2025 by Pamela Hennawi
    • A Really Nice Offroad Style Helmet
Color: Warped, Black / Copper Size: Medium
Bought for offroad focused rides on a dual sport. Nice and light weight with decent ventilation. A good helmet at full price, a great helmet if you can grab one of the discounted color-size options. Mine barely cost more than discount helmets with questionable safety ratings. The light wieght, fresh breathing air, and road rated protection make me want to use this for everything except sustained high speed road riding or cold/wet weather. I almost always wear medium, and medium fit fine but is pretty snug. It's sure to loosen up a little bit and be perfect. I doubt I'll find anything better at a similar price. I should probably buy 2 and keep one in reserve. ... show more
Reviewed in the United States on April 3, 2026 by Freund Family
    • Great - Runs small
Color: Warped, Black / Copper Size: Large
Super-nice helmet! I usually wear a medium and I needed a large.
Reviewed in the United States on May 2, 2026 by Sergio Brown
    • Solid Helmet
Nice fit and finish, materials inside are comfortable, fits true to size, great ventilation, and I was stoked to see MIPS at this price point! I ride dual-sport, but use this style helmet, as I'm typically 80-90% on dirt, and I was pleasantly surprised how the visor doesn't seem to catch wind at highway speeds and pull my head the way other dirt helmets I've owned in the past did. It also fits large goggles (100% Armegas) perfectly, as I would expect any modern helmet design to do. ... show more
Reviewed in the United States on March 14, 2026 by John
    • Great Helmet!
Color: Warped, Black / Copper Size: Medium
Love this Helmet! Very stylish and great price for name brand. Have gotten many compliments!
Reviewed in the United States on January 8, 2026 by M. Benitez
    • Works perfectly
Looks good and fit good
Reviewed in the United States on February 15, 2026 by Jacobi
    • Awesome fit; good materials, comfortable breathable
Overall a great helmet. I have t bought a new one in years. This has the mips and isn’t all crazy with the graphics and colors. It fits my head great and doesn’t squeak or wobble. My sunglasses fit while wearing without squeezing my temples, and gogs fit just fine too. This helmet is awesome. Hopefully I won’t ever need to use its other features. Got it on sale for $299 off the regular price so that’s a plus as well. I don’t mind buying a year or two older model - having the latest and greatest is only for the well off. Us normals need to do it on budget. This is perfect especially since low grade aliexpress helmets will get you hospitalized with brain trauma. I don’t play around with tbi. You only get one brain, get a good Brian bucket for it as Ken would say. ... show more
Reviewed in the United States on November 10, 2024 by REX
    • Quality is great, but size is not accurate Quality is great, but size is not accurate
Review Image by Yeli
Review Image by Yeli
We replaced my 14yo son’s helmet with this new one. He is 5’8” 130lbs and usually wears a Large. This new helmet was really, really tight. He did successfully fit inside of it but says it feels really tight. My husband 5’11” 170lbs tried wearing it and couldn’t fit in it. It is super sturdy, excellent quality. He loves his new helmet, looks great and he can breathe ok in it. ... show more
Reviewed in the United States on January 17, 2025 Reviewed in the United States on January 17, 2025 by Yeli

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