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Troy Lee Designs SE4 Polyacrylite Factory Youth Helmet

2019 Model DOT ; ECE 22-05
Was $225.00
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Troy Lee Designs SE4 Polyacrylite Factory Youth Helmet

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Troy Lee Designs SE4 Polyacrylite helmet comes with MIPS, incorporating brain rotational protection. This helmet comes with sixteen intake ports to channel cool air around and over a rider's head, forcing hot sweaty air out through six rear exhaust ports.


  • MIPS brain protection system, reduces rotational forces to the brain
  • EPP (Expanded PolyPropylene) chin bar for lightweight, durable protection
  • Anatomical 3D contoured cheek pads with emergency release system for EMS responders to easily remove cheek pads before removing the helmet
  • Plastic visor screws and brass inserts for easy impact break away protection
  • Stainless steel D-rings are both strong and light
  • Includes Troy Lee Designs drawstring helmet bag
  • Meets or exceeds DOT FMVSS 218, ECE 22.05 and AS/NZS 1698 certifications
  • Blue/Black

Troy Lee Designs SE4 Youth Helmets

Helmet Size Hat Size Head Circumference (in) Head Circumference (cm) EPS Size Shell Size
M 6-1/8 - 6-3/8 19-3/4 - 20-1/4 50 - 51 M-L M-L
L 6-1/2 - 6-5/8 20-1/2 - 21 52 - 53 M-L M-L
Headliners can be interchanged within the same EPS size. SE4 cheekpads are interchangeable through the entire size range.

Troy Lee Designs SE4 Youth Helmet Liner

Helmet Size M - L
Headliner Size M L
Headliner Thickness (mm) 17 13
SE4 headliners can be interchanged within the same EPS size.

Troy Lee Designs SE4 Youth Helmet Cheek Pads

Helmet Size M - L
Cheekpad Size M L
Cheekpad Thickness (mm) 38 28
SE4 cheekpads are interchangeable through the entire size range.

General Sizing Information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Head Circumference

With tape level, measure around the widest point of your head, approximately 1 inch above your eyebrows.


Age & Gender
SE4 Polyacrylite
Model Name for Gear
SE4 Polyacrylite
Troy Lee Designs
Safety Certification
DOT ; ECE 22-05
Model Description
2019 Model

Item Numbers

Details Item Number Availability Store Pickup
Details:Blue/Black  M Item #TL-112008003 Availability:In stock: Ready to shipStore Pickup:Available


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