Troy Lee Designs – SE4 Polyacrylite Mono Helmet
The Troy Lee Designs SE4 Polyacrylite Mono Helmet is the SE4 platform in the Mono colorway. Polyacrylite shell construction with Mips® rotational impact protection, EPP chin bar, three shell sizes, 16 intake ports channeling airflow through 6 rear exhaust ports, anatomical 3D contoured cheek pads with emergency release, stainless steel D-rings, and DOT FMVSS218 certification. Weighs 1500g.
Why We Like It:
SE4 is TLD’s long-running motocross helmet platform, and the polyacrylite version brings the same shell shape and Mips® rotational protection as the higher-tier composite and carbon SE4s at a lower price.
Why It’ll Work for You:
Best for motocross and off-road riders who want the SE4 fit and Mips® protection without going to a composite or carbon shell. Pair with any TLD race kit.
Key Features:
- Mips® Rotational Impact Brain Protection System
- Polyacrylite shell construction
- EPP (Expanded Polypropylene) chin bar
- Three shell sizes for a range of head sizes and rider ages
- 16 intake ports channeling airflow through 6 rear exhaust ports
- Weighs 1500g
- Anatomical 3D contoured cheek pads with emergency release system
- Plastic visor screws and brass inserts for impact break-away
- Stainless steel D-rings
- DOT FMVSS218 certified
- Includes TLD helmet drawstring sock










