---
product_id: 369708257
title: "O'Neal Sierra Helmet"
brand: "o'neal"
price: "€ 301.92"
currency: EUR
in_stock: true
reviews_count: 5
category: "O'neal"
url: https://www.desertcart.fr/products/369708257-oneal-sierra-helmet
store_origin: FR
region: France
---

# 12 vents for superior airflow and moisture control Lightweight at just 1590g for all-day comfort ABS shell for ultimate impact resistance O'Neal Sierra Helmet

**Brand:** o'neal
**Price:** € 301.92
**Availability:** ✅ In Stock

## Summary

> 🏍️ Gear up smart, ride fearless with Sierra – where safety meets style!

## Quick Answers

- **What is this?** O'Neal Sierra Helmet by o'neal
- **How much does it cost?** € 301.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/369708257-oneal-sierra-helmet)

## Best For

- o'neal enthusiasts

## Why This Product

- Trusted o'neal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Goggle Ready:** Side traction pads keep your goggles locked in place, no distractions
- • **Seamless Vision:** Integrated face shield for clear, hassle-free protection
- • **Stay Cool & Dry:** Moisture-wicking, removable liner keeps you fresh on every ride
- • **Ride with Confidence:** DOT FMVSS 218 certified for top-tier safety compliance
- • **Secure Fit, Every Time:** Padded chin strap with double-D safety lock ensures no-slip security

## Overview

The Sierra Helmet by O'Neal combines a durable ABS shell with a lightweight 1590g design, featuring 12 strategically placed vents for optimal airflow. Certified to DOT FMVSS 218 standards, it includes a moisture-wicking, removable liner, an integrated face shield, and a secure double-D chin strap lock. Perfect for the discerning rider seeking safety, comfort, and sleek aerodynamic style.

## Description

O'NEAL produces motorcycle and cycle gear, parts, apparel and accessories that absolutely offer the best in comfort, quality and protection every time you ride. Security, quality and protection you can trust after nearly 40 years of racing. Features: Shell IIS constructed with ABS - Weight: 1590g ( 50g) - Moisture wicking, removable/washable air channeled comfort liner- Vent holes for optimal ventilation - Integrated face shield- Height adjustable helmet shield - Padded Chin Strap with Double-D safety lock - Meets DOT and ECE 22.05 safety standards - Designed for Street, Enduro, Side by Side and Adventure Bike's- Replacement parts available. This measurement is the total circumference of your head. With tape level, measure the widest point of your head, approximately 1 inch above your eyebrows. Please note, that your helmet should fit snugly and not be able to move easily up and down or side to side when the chin strap is fastened. If this occurs, please try a smaller size.

Review: Muy confortable, se ajusta muy bien, gran vision, el protector anti baho funcio estupendamente, muy bonito , con una relacion calidad precio estupenda. Estoy muy contento con la compra, totalmente recomendable
Review: Gutes Produkt und schnelle Lieferung. Ein Helm der gut verarbeitet ist, mit Sonnenblende und Ratschenverschluss und Pinlock für 132.-€ ist super. Der Helm ist relativ leise, zu bemerken, es ist ein Endurohelm! Bei höheren Geschwindigkeiten nimmt natürlich der Komfort ab, aber das ist ja klar. Es gibt drei kleine Punkte die mir etwas missfallen aber bei dem Preis keinen Sternabzug bekommen - Das Visier lässt sich nur mit Werkzeug entfernen. - der Ratschenverschluß ist etwas zu nah am Hals. (Bei Schubert Helmen ist es aber schlimmer. - Einbau von winer Sprechanlage mus links und rechts etwas vom Styropor entfernt werden, damit die Hörmischeln gut sitzen. Alles in Allen sehr empfehlenswert.

## Features

- Shell is constructed with ABS
- Weight: 1590G ( 50G)
- Moisture wicking, removable/washable air channeled comfort liner
- Integrated face shield
- Padded chin strap with double-d safety lock. Side goggle traction pad keeps goggle strap securely in place

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Sport | Motorcycling |
| Finish type | Glossy |
| Number of vents | 12 |
| Shell type | Hard |
| Specification met | DOT FMVSS 218 |
| Shape | Aerodynamic |
| Closure type | Hook & Loop |
| Global Trade Identification Number | 04046068487991 |
| Manufacturer | O'Neal |
| Model name | Sierra II |
| Age Range | Adult |
| Color | Flat Black |
| Size | L |
| Style | Full-face-helmet-style |
| Weight | 2040 Grams |
| Material Type | Polycarbonate (PC) |
| Number of Items | 1 |
| Outer Material | Acrylonitrile Butadiene Styrene (ABS) |
| Features | Adjustable |
| Included Components | helmet |
| Batteries Included? | No |
| Department | unisex-adult |
| Item model number | 0817-504 |
| Product Dimensions | 40.64 x 2.54 x 30.48 cm; 1.59 kg |
| ASIN | B01K9GN6C8 |

## Product Details

- **Brand:** O'NEAL
- **Colour:** Flat Black
- **Item weight:** 3.5 Pounds
- **Material:** Polycarbonate (PC)
- **Vehicle service type:** ATV, Off-Road Bike, PWC, street-cruiser-motorcycles, street-touring-motorcycles

## Images

![O'Neal Sierra Helmet - Image 1](https://m.media-amazon.com/images/I/61k3kTvHZOL.jpg)

## Questions & Answers

**Q: Are these good for use with glasses? Enough air that my glasses won’t fog up ? And will the shield fog up itself?**
A: I don’t wear glasses but there seems to be enough room.  I have not had any issues with the shield fogging up.  There seems to be enough air flow through the front vents

**Q: How do i know if i order i will not get a left over year of manufacture?  what year is printed in these helmets?**
A: You get a helmet that looks exactly like the one you order. I don’t know what year it was made. But you don’t get a different helmet. Like a previous looking model. You get what’s pictured. It’s not like a car.

**Q: does the visor protect you from UV?**
A: The description says yes

**Q: Is this helmet super loud on the highway?**
A: Yes, it is significantly louder than all of my other helmets. I usually wear a good set of ear plugs with this one.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 15 January 2024*

Muy confortable, se ajusta muy bien, gran vision, el protector anti baho funcio estupendamente, muy bonito , con una relacion calidad precio estupenda. Estoy muy contento con la compra, totalmente recomendable

### ⭐⭐⭐⭐⭐ Review
*by &***; on 5 March 2020*

Gutes Produkt und schnelle Lieferung. Ein Helm der gut verarbeitet ist, mit Sonnenblende und Ratschenverschluss und Pinlock für 132.-€ ist super. Der Helm ist relativ leise, zu bemerken, es ist ein Endurohelm! Bei höheren Geschwindigkeiten nimmt natürlich der Komfort ab, aber das ist ja klar. Es gibt drei kleine Punkte die mir etwas missfallen aber bei dem Preis keinen Sternabzug bekommen - Das Visier lässt sich nur mit Werkzeug entfernen. - der Ratschenverschluß ist etwas zu nah am Hals. (Bei Schubert Helmen ist es aber schlimmer. - Einbau von winer Sprechanlage mus links und rechts etwas vom Styropor entfernt werden, damit die Hörmischeln gut sitzen. Alles in Allen sehr empfehlenswert.

### ⭐⭐⭐⭐⭐ Review
*by 5***J on 4 September 2024*

Passt sehr gut

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-23*