






🛵 Gear up smart, ride fearless with O'NEAL Sierra!
The O'NEAL Sierra Helmet combines a high-impact polycarbonate/ABS shell with an integrated, height-adjustable face shield and a padded chin strap featuring a double-D safety lock. Certified to meet DOT FMVSS 218 and ECE 22.05 standards, this aerodynamic helmet offers superior protection and customizable comfort for unisex adult riders.






| Sport | Motorcycling |
| Certificate Type | DOT |
| Shell Type | Hard |
| Specification Met | ECE, DOT |
| Shape | Aerodynamic |
| Manufacturer | O'Neal |
| Model Name | Sierra R Helmet |
| Item Package Dimensions L x W x H | 16.06 x 12.71 x 10.94 inches |
| Package Weight | 2.34 Kilograms |
| Item Dimensions LxWxH | 3.94 x 3.94 x 3.94 inches |
| Brand Name | O'NEAL |
| Warranty Description | See Manufacturer |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 0818-703 |
| Model Year | 2022 |
| Style | Black/Gray |
| Included Components | Full Face Helmet |
| Outer Material | Acrylonitrile Butadiene Styrene |
| Size | Medium |
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