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🖤 Ride Bold, Ride Protected — The Sierra Helmets Means Business
The O'Neal Sierra Helmet in Flat Black combines a durable ABS shell with 12 ventilation ports and an integrated adjustable face shield, delivering top-tier protection and comfort. Designed for street, enduro, and adventure riders, it features a moisture-wicking, removable liner and a double-D chin strap for a secure fit. Certified to DOT and ECE 22.05 standards, this helmet is a trusted choice for riders who demand safety without sacrificing style.
| ASIN | B01K9GN6C8 |
| Best Sellers Rank | #13,133 in Automotive ( See Top 100 in Automotive ) #50 in Motorcycle & Powersports Helmets |
| Brand | O'NEAL |
| Brand Name | O'NEAL |
| Closure Type | Hook & Loop |
| Color | Flat Black |
| Compatible with Vehicle Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Customer Reviews | 4.6 out of 5 stars 2,684 Reviews |
| Finish Type | Glossy |
| Global Trade Identification Number | 04046068487991 |
| Included Components | helmet |
| Item Type Name | Sierra Helmet R |
| Item Weight | 3.5 pounds |
| Manufacturer | O'Neal |
| Manufacturer Part Number | 0817-504 |
| Material | Polycarbonate (PC) |
| Material Type | Polycarbonate (PC) |
| Model Name | Sierra R Helmet |
| Model Number | 0817-504 |
| Number Of Vents | 12 |
| Number of Items | 1 |
| Shape | Aerodynamic |
| Shell Type | Hard |
| Specification Met | DOT FMVSS 218 |
| Sport | Motorcycling |
| Sport Type | Motorcycling |
| Style Name | Full-face-helmet-style |
| Unit Count | 1 Count |
| Vehicle Service Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Warranty Description | See Manufacturer |
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