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Discover our sale
GET A FREE DREAM BOOK FOR ORDERS OVER €50 (WHILE STOCKS LAST)
The SIERRA helmet – Your safe companion for Street & Adventure
Get ready for style, safety, comfort, and innovative technology – the O’NEAL SIERRA helmet combines them all in a sleek overall design. With this helmet you’re free to focus on the road and know that the SIERRA will support you.
Get ready for style, safety, comfort, and innovative technology – the O’NEAL SIERRA helmet combines them all in a sleek overall design. With this helmet you’re free to focus on the road and know that the SIERRA will support you.
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Size
Item model number: —
Details
Specifications
Technical Specifications
Customer reviews
Details
High-end is the perfect word to describe the O’NEAL SIERRA: Delivering top performance in design, comfort, and safety, this O’NEAL helmet is up to any challenge.
• Optimal ventilation & cooling
• Microlock closure
• Pinlock® 30 anti-fog lens included
These and many other features distinguish this Street & Adventure helmet.
Be 50 Years Faster and set new standards with O’NEAL
O’NEAL has been an experienced partner to motorsport athletes from all over the world for more than 50 years. With equipment that meets the highest requirements, we set new industry standards to take you right to the front of the pack.
Specifications
Peer reviewed: In a comparison test, Europe’s largest motorcycle magazine, “MOTORRAD”, declared the O’Neal SIERRA Helmet a winner and a “recommended purchase” in the Adventure/Enduro helmet category.
ABS shell: The shell of this O'NEAL helmet is constructed out of robust and lightweight ABS.
Ventilation & cooling: Multiple air vents ensure optimal ventilation and cooling – to make sure you feel comfortable for long periods on the bike in any climate.
Matte finish for a perfect look: With the modern, stylish matte finish of your O’NEAL helmet, the colors & design are left looking vibrant – and extra durable.
Durable design: Multi-colored graphics lend this O’NEAL helmet its sporty appearance – and with a long-lasting finish, it's going to look amazing for a long time.
Removable liner: The sweat absorbent padded comfort liner is removable and washable – for extra easy maintenance.
Microlock fastener: With a Microlock fastener (ratchet fastener), this helmet is particularly comfortable and easy to adjust on the go.
Bluetooth ready: With internal speaker cavities and rubber hoop at the back, this helmet can easily be equipped with a Bluetooth unit. (Bluetooth unit not included)
Pinlock® included: this O’NEAL helmet comes with a Pinlock® 30 fog resistant insert lens which you can easily mount yourself.
Integrated sun visor: This O’NEAL helmet comes with a clear visor. A secondary integrated sun visor provides improved visibility and protects against bright lights.
Standardized safety: This O’NEAL helmet meets the ECE 22.05 test standards for increased safety for protective helmets for powered two-wheelers.
Product:
O'NEAL SIERRA Helmet TORMENT Black/White
on
oneal.eu
Easy forgot that you are using it.
from Jesse from @envoyage - Nov. 26, 2023
With its weight of 1,590 grams and a remarkably wide angle of view, this helmet is both very comfortable and affordable.
I tested it on a long trip, wearing it continuously for 5 days, and I have no regrets.
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black L
on
Amazon.de
from BRetail Ltd - Dec. 17, 2022
Very high quality
Product:
O'NEAL SIERRA Helmet R V.23 Gray/Black/Red
on
oneal.eu
Helmet saved my life.
from Du Plessis - Oct. 21, 2022
Guys and ladies, there is only one thing to say. It's safe!
Through the grace of God let me wear a O'Neal Sierra helmet, it saved my life. After a motor cycle accident I was unconscious after hitting my head on the ground. CTC scans done by doctor indicate no skull cracks nor concussion. Next order will be another O'Neal Helmet. 5/5 rating
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black XL
on
Amazon.de
from Dan - Jan. 05, 2022
A visor, shield, sun shield and adjustable ventilation are good requirements a helmet should have when you ride an EUC. This helmet has it all and I am happy with my purchase several months of usage during cold season. It may be too hot for summer but that remains to be seen.
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black M
on
Amazon.de
from Shaun - Dec. 02, 2021
Really is worth the money. Nice chuncky and a snugg fit plus 2 visors. Makes me feel like a bobble head, but safety first.
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black XL
on
Amazon.de
from Spooch - Aug. 01, 2021
Nice snug fit, good value for the money/comfortable. Chin cover keeps falling out though, that's the only problem with it. 4 stars instead of 5.
Product:
O'NEAL SIERRA Helmet R V.22 Black/Gray
on
Amazon.de
from stewart - Feb. 27, 2021
Amazing
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black M
on
Amazon.de
from Richard Burnett - Feb. 15, 2020
Product:
O'NEAL SIERRA Helmet FLAT V.17 Black XL
on
Amazon.de
from Amazon Customer - Jan. 26, 2020
Excellent helmet, exactly what I was looking for. Light, comfortable, pinlock and sun visor. Arrived quickly and well packaged.
Product:
O'NEAL SIERRA Helmet R V.22 Black/White M (57-58cm)
on
Amazon.de
Guter Motorradhelm mit auffälliger Farbe
from Mäx - Apr. 29, 2023
Der O'NEAL Sierra R V.22 Helm ist ein professioneller Motocross Helm mit einer Vielzahl von Funktionen, die den Schutz und die Sicherheit des Trägers gewährleisten. Der Helm besteht aus einer leichten ABS-Schale und verfügt über eine mehrschichtige EPS-Futterung, die Stöße und Aufprälle absorbieren kann. Die Innenpolsterung ist herausnehmbar und waschbar. Der Helm verfügt über ein hochwertiges Visier mit mehreren Einstellungen und bietet eine hervorragende Sicht auf die Strecke. Die Belüftungsöffnungen an der Vorder- und Rückseite des Helms sorgen für eine optimale Luftzirkulation und halten den Kopf kühl und trocken während der Fahrt. Die Kundenbewertungen für den O'NEAL Sierra R V.22 Helm sind durchweg positiv, und die Benutzer loben die Qualität und den Komfort des Helms. Einige Kunden haben bemerkt, dass der Helm möglicherweise etwas laut ist, aber insgesamt sind sie mit der Leistung des Helms zufrieden. Insgesamt scheint der O'NEAL Sierra R V.22 Helm eine hervorragende Wahl für professionelle Motocross-Fahrer zu sein, die nach einem leichten, aber dennoch robusten Helm suchen, der ihnen den nötigen Schutz und Komfort bietet. Mit einer herausnehmbaren und waschbaren Innenpolsterung, einem hochwertigen Visier und optimaler Belüftung ist dieser Helm ein ausgezeichnetes Beispiel für Qualität und Leistung im Bereich der Motocross Helme.
O'NEAL SIERRA Helmet FLAT Black
135€189.99
The SIERRA helmet – Your safe companion for Street & Adventure
Get ready for style, safety, comfort, and innovative technology – the O’NEAL SIERRA helmet combines them all in a sleek overall design. With this helmet you’re free to focus on the road and know that the SIERRA will support you.
Get ready for style, safety, comfort, and innovative technology – the O’NEAL SIERRA helmet combines them all in a sleek overall design. With this helmet you’re free to focus on the road and know that the SIERRA will support you.