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Item #:
80079309
O'Neal Sierra II Flat Dual Sport Helmet - Adult MX Motocross Dirt Bike ATV Offro
Item #:
80079309
XCD 566
Price Details
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In stock
Imported from USA store
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Only 6 items left in stock.
Order now and get it around Saturday, September 26
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What Stands Out
Versatile Design
The O'Neal Sierra II helmet combines motocross styling with street helmet functionality, making it ideal for both off-road and on-road riding, catering to versatile riding enthusiasts.
Advanced Protection
Equipped with high-density EPS foam and a durable outer shell, this helmet provides exceptional safety and impact protection, ensuring riders feel secure during high-performance activities.
Comfortable Fit
Featuring a moisture-wicking, removable lining and adjustable visor, the helmet offers personalized comfort and enhanced airflow, significantly improving the riding experience over long durations.
Product Details
| Brand | O'Neal |
| Type | Dual Sport |
| Performance/Activity | Motocross/Enduro, Off-Road, On-Road |
| Department | Unisex Adults |
| Labels & Certifications | DOT Approved, ECE Approved |
| Manufacturer Part Number | 0817-5 |
| Country of Origin | China |
| Item Weight | 3.5 lbs (1.59 kg) |
Who Should Buy?
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Adventure Riders
This helmet provides the versatility needed for both on-road and off-road riding, making it perfect for adventure enthusiasts.
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Motocross Enthusiasts
Designed for high-impact environments, it offers protection and comfort for motocross riders tackling challenging terrains.
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Dirt Bike Beginners
Affordable yet durable, this helmet is ideal for beginners who are new to dirt biking and require reliable safety gear.
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Street Commuters
Not designed for prolonged street riding, as it may lack the aerodynamic features and ventilation needed for urban commuting.
Product Description
About This Item
Introducing the O'Neal Sierra II Flat Dual Sport Helmet - the perfect combination of style, safety, and versatility for all your outdoor adventures. Designed by O'Neal, a trusted and reliable brand in the motocross industry, the Sierra II Helmet is crafted to meet the needs of off-road enthusiasts. With its sleek and aerodynamic design, this helmet not only looks great but also provides maximum protection on the trails. Safety is our top priority, and the Sierra II Helmet excels in this aspect.
It features a sturdy polycarbonate shell that effectively absorbs impact and protects your head from potential injuries. The helmet is also DOT and ECE certified, ensuring it meets the highest safety standards for your peace of mind. One of the standout features of the Sierra II Helmet is its dual sport functionality. Whether you're ripping through dirt tracks or cruising on the open road, this helmet can handle it all.
The removable visor allows you to customize your look and adapt to different riding conditions, making it a versatile choice for all types of riders. Comfort is key when it comes to a helmet, and the Sierra II delivers. It comes with a moisture-wicking liner that keeps you cool and dry, even during long rides. The adjustable ventilation system allows you to regulate airflow, preventing overheating and ensuring optimal comfort in various weather conditions. Finding the perfect fit is easy with the O'Neal Sierra II Helmet.
It is available in a wide range of sizes, and the size chart provided helps you find the right one for your head circumference. Additionally, the helmet features a secure and adjustable chin strap, ensuring a snug and comfortable fit for every ride. Accessorize your helmet with the various O'Neal helmet accessories available, such as tinted shields and helmet bags. These add-ons enhance the functionality and style of your helmet, allowing you to personalize it to your liking. The O'Neal Sierra II Helmet comes in a variety of vibrant colors, allowing you to express your personality and stand out from the crowd.
Choose your favorite color and hit the trails in style. Don't compromise on quality or safety when it comes to your ride. Invest in the O'Neal Sierra II Flat Dual Sport Helmet - the ultimate choice for off-road enthusiasts. Order yours today and experience the perfect combination of style, comfort, and protection on your next adventure.
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Customer Questions & Answers
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Question:
What are the safety standards met by this helmet?
Answer: DOT FMVSS 218 and ECE 22.05 safety standards are met. -
Question:
What type of bikes is this helmet designed for?
Answer: It is designed for Street, Enduro, and Adventure Bikes. -
Question:
Does the helmet provide UV protection?
Answer: Yes, it features an integrated face shield with UV protection.
o'neal Editorial Review
The O'Neal Sierra II Flat Dual Sport Helmet is designed for both off-road and on-road adventures, catering perfectly to motocross and enduro enthusiasts. Weighing just 3.5 lbs, it combines lightweight comfort with robust safety features, being both DOT and ECE approved for quality assurance. It's suitable for unisex adults, ensuring a versatile fit for a wide range of riders. This helmet has garnered positive feedback for its balance of protection and performance across diverse terrains, allowing riders to tackle any challenge confidently.
Customer Reviews & Ratings
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Pros
- Lightweight design enhances rider comfort
- DOT and ECE approved for safety
- Versatile for off-road and on-road use
- Unisex design fits a variety of head shapes
- Styled for a modern motocross look
Cons
- May not fit all head shapes perfectly
Platform Trust & Buyer Confidence
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Jazz
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“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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XCD 566
Order now and get it around Saturday, September 26
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 6 items left in stock.
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Features & Benefits
- Features a full windscreen and visor with a drop-down tinted shield
- Moisture-wicking and removable air channeled comfort liner
- Vent holes for optimal ventilation
- Integrated face shield with UV protection
- Meets safety standards: DOT FMVSS 218 and ECE 22.05
- Designed for Street, Enduro, and Adventure Bikes
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