O'Neal SIERRA FLAT V.23 Adventure Helmet BlackL Black
O'Neal SIERRA FLAT V.23 Adventure Helmet BlackL Black
Overall Rating: 4.5 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 6,235 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 6,235 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
3-7 days
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£107.99
Free Delivery
O'Neal SIERRA FLAT V.23 Adventure Helmet BlackL Black
Overall Rating: 4.2 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 8,941 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 8,941 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
3-7 days
PayPal
PayPal
DIRECTebanking
DIRECTebanking
Visa
Visa
Mastercard
Mastercard
£107.99
Free Delivery
Oneal Sierra Flat 2023 Motocross Helmet, black, size L for Men
Overall Rating: 2.3 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 388 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 388 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
3 - 5 days
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£114.18
Delivery from £9.82
O'NEAL Sierra Flat V.23 black size L
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 1 Feb 2026)
Based on a total of 7,812 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 7,812 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1-5 Days
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£132.53
Delivery from £8.83
Oneal Sierra Flat V.23 Full Face Helmet Black L
Overall Rating: 4.3 / 5 (average from multiple review sources, as of 8 Feb 2026)
Based on a total of 8,161 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 8,161 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
2 working day(s)
PayPal
PayPal
DIRECTebanking
DIRECTebanking
Visa
Visa
Mastercard
Mastercard
£132.99
Delivery from £12.49
Oneal SIERRA FLAT MX-Helm matt schwarz L
Overall Rating: 4.6 / 5 (average from multiple review sources, as of 26 Jan 2026)
Based on a total of 19,165 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 19,165 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
23.02.2026
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
Bank transfer
Bank transfer
£137.58
Delivery from £13.03
🤖 Ask ChatGPT
💡 Is it worth the price?
🔁 Better alternatives?
⭐ What do users say?
Product information
At a glance
- Durable motorcycle helmet with ABS shell construction.
- Superior fit ensured by double-D safety lock.
- Enhanced comfort via integrated ventilation system.
Note: This text was created with the help of AI.
Who Should Wear the O'Neal Sierra Flat V.23 Black?
Are you an adrenaline junkie always on the prowl for the next thrill on your two-wheeler? Or perhaps a leisure rider who values safety as much as the freedom of the open road? The O'Neal Sierra Flat V.23 Black is a perfect fit when it comes to Motorcycle Helmets. Not only is it a beacon of style, but it also serves as a strong shield between you and potential hazards.
Why the O'Neal Sierra Flat V.23 Black Shines in Functionality
From its unique design to the robust build, the O'Neal Sierra Flat V.23 Black merges functionality and style in a seamless way. Here are some of its key features:
- Its shell is constructed from ABS, guaranteeing long-lasting durability.
- The helmet includes a double-D safety lock, ensuring a secure fit while in use.
- The advanced integrated ventilation system provides a fresh, cool feel, enhancing comfort during long rides.
What Makes the O'Neal Sierra Flat V.23 Black Visually Appealing?
With the O'Neal Sierra Flat V.23 Black, you're not just investing in safety, but also in a fashion statement. Its matte black finish gives it a sleek, sophisticated look that never goes out of style. The aerodynamic design not only serves a functional purpose but adds to the overall visual allure of the helmet. In addition, the well-designed visor blends seamlessly with the helmet's overall aesthetic, making you stand out in any crowd.
More Reasons to Choose the O'Neal Sierra Flat V.23 Black
Still not convinced? This helmet goes beyond the standard:
- The integrated sun visor can be adjusted in three different positions, allowing for optimum vision in varying light conditions.
- The lining, cheek pads, and strips are all removable and washable - a vital feature for maintaining hygiene and comfort.
- Its compatibility with eyeglasses assures that clear vision is always maintained, even for spectacle wearers.
Note: This text was created with the help of AI.
Pros and cons
Pros
- ABS shell for durability
- Double-D safety lock
- Advanced ventilation system
- Adjustable integrated sun visor
Cons
- Not suitable for non-glasses wearers
- Hygiene maintenance requires regular washing
Note: This text was created with the help of AI.
How well did the information meet your expectations and assist you further?
Not at all
Neutral
Very much
Similar products
£107.04
fc-moto.co.uk
Delivery from £9.82
£107.04
fc-moto.co.uk
Delivery from £9.82
Oneal Sierra Flat V.22 Motocross Helmet, white, size XS for Men
£99.90
fc-moto.co.uk
Delivery from £9.82
£107.04
fc-moto.co.uk
Delivery from £9.82
ONeal 0817-512 Sierra II Flat Helmet Sm White
£138.54
ebay.co.uk
Delivery from £73.40
Cheapest offer
The Oneal Sierra V.23 is perfect whether you ride on the pavement, on dirt or both. This helmet has the features you need for your next two-wheel adventure. Combining a full windscreen and a visor with a drop-down tinted visor. The helmet will get you anywhere you want to go.Features:• ABS shell• Moisture-wicking, removable/washable air channelled comfort liner• Vent holes for optimal ventilation• Integrated face visor with UV protection• Height adjustable helmet visor• Padded Chin Strap with micrometric closure• Designed for Street, Enduro and Adventure Bikes• Replacement parts available• The side goggle traction pad keeps the goggle strap securely in place• High air intake mouth vent with a screen that lets air in, keeping debris out • Weight: 1590g ±50g• Complies with ECE 22.05Note: Helmets displayed with tinted visors, will always be delivered with a clear visor unless explicitly stated.
£107.99
3-7 days
xlmoto.co.uk
Don't forget your voucher code:
Report Illegal Concerns
You are about to report a violation based on the EU Digital Services Act (DSA).