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🏍️ Ride Bold, Ride Protected — The Sierra Means Serious Safety
The O'Neal Sierra Helmet in Flat Black XXL combines a tough ABS shell with a moisture-wicking, removable comfort liner and an integrated adjustable face shield. Designed for street and off-road riders, it features a padded chin strap with a double-D safety lock and meets rigorous DOT and ECE 22.05 safety standards. Lightweight yet durable, this helmet offers reliable protection and comfort for the discerning motorcyclist.




| Asin | B01K9GN9Z2 |
| Best Sellers Rank | #24,113 in Automotive (See Top 100 in Automotive) #76 in Motorcycle & Powersports Helmets |
| Brand Name | O'NEAL |
| Certificate Type | DOT |
| Color | Flat Black |
| Compatible With Vehicle Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,702) 4.5 out of 5 stars |
| Finish Type | Glossy |
| Global Trade Identification Number | 04046068488011 |
| Included Components | helmet |
| Item Type Name | Sierra Helmet R |
| Item Weight | 3.5 pounds |
| Manufacturer | O'Neal |
| Manufacturer Part Number | 0817-506 |
| Material Type | Polycarbonate (PC) |
| Model Name | Sierra R Helmet |
| Model Number | 0817-506 |
| Number Of Items | 1 |
| Shape | Oval |
| Shell Type | Hard |
| Specification Met | FMVSS 218 |
| Sport Type | Motorcycling |
| Style Name | Full-face-helmet-style |
| Unit Count | 1 Count |
| Warranty Description | See Manufacturer |
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