Whether you ride on the pavement or the dirt or both the Sierra II has the features you need for your next two-wheel adventure. Combining a full windscreen and a visor with a drop-down tinted shield, the Sierra II helmet will get you anywhere you want to go.

Shell is constructed with ABS
Weight: 1590g (±50g)
Moisture-wicking, removable/washable air-channelled comfort liner
Vent holes for optimal ventilation
Integrated face shield with UV protection
Height adjustable helmet shield
Padded chin strap with micrometric safety lock
Meets DOT and ECE 22.05 safety standards
Designed for Street, Enduro and Adventure Bikes
Replacement parts available
Side goggle traction pad keeps goggle strap securely in place
High air intake mouth vent with screen lets air in while keeping debris out

Need help with sizing? Read our helmet sizing guide or visit CSM for a fit check.

Availability: Contact CSM to confirm your preferred size and colour. Some items need to come from a supplier; ask us to check the estimated arrival time if you need it by a particular date.

O'Neal SIERRA Helmet - Flat Black

Name: O'Neal SIERRA Helmet - Flat Black
Price: 239 NZD
Availability: InStock

$239.00

Select Size

Prices include GST. Ordering, freight & collection

For bikes, ask us about viewing, accessories and trade-ins. For parts and gear, include the size, colour and your bike’s make, model and year so we can check fitment.

Contact us to confirm availability. Some items need to be ordered from suppliers. We’ll send an invoice; once payment is received, your order can be shipped or collected.

Contact us for a freight quote before ordering. Pick up in store, or ask us about collection at selected local motocross events by prior arrangement.

Returns

For change-of-mind returns, contact us to check the relevant supplier’s return conditions. If your item is faulty or there’s a problem with your order, contact CSM so we can help. This does not limit your rights under the Consumer Guarantees Act.

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Buying a Yamaha motorcycle, ATV or side-by-side? Explore finance and insurance options on Yamaha New Zealand’s website.

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Finance is subject to approval, lending criteria, fees and conditions. Insurance is subject to policy conditions, exclusions and limits. Contact Yamaha Motor Insurance for cover enquiries.