---
product_id: 58636286
title: "Sierra Helmet"
brand: "o'neal"
price: "$480.59"
currency: USD
in_stock: true
reviews_count: 8
category: "O'neal"
url: https://www.desertcart.us/products/58636286-sierra-helmet
store_origin: US
region: United States of America
---

# Lightweight 1590g ABS shell Vent holes for optimal airflow DOT & ECE 22.05 certified safety Sierra Helmet

**Brand:** o'neal
**Price:** $480.59
**Availability:** ✅ In Stock

## Summary

> 🏍️ Gear up smart, ride fearless—O'Neal Sierra, where safety meets style.

## Quick Answers

- **What is this?** Sierra Helmet by o'neal
- **How much does it cost?** $480.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/58636286-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

- • **Sun-Ready Shield:** Integrated, height-adjustable face shield with sun visor keeps glare at bay and vision sharp.
- • **Custom Fit & Care:** Moisture-wicking, removable liner plus padded chin strap with double-D safety lock for all-day comfort and security.
- • **Featherlight Comfort:** Engineered with a 1590g ABS shell for durable protection without the bulk.
- • **Breathe Easy Ventilation:** Stay cool and focused with strategically placed vent holes that optimize airflow on every ride.
- • **Trusted Safety Standards:** Ride with confidence—meets rigorous DOT & ECE certifications for ultimate protection.

## Overview

The O'Neal Sierra Helmet combines nearly 40 years of racing expertise into a lightweight, ABS composite shell helmet that meets DOT and ECE 22.05 safety standards. Designed for street and off-road riders, it features optimal ventilation, a moisture-wicking removable liner, and an integrated adjustable sun visor. Perfect for the discerning rider seeking premium protection, comfort, and style without compromise.

## 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.

Review: For the price, one great dual sport riding helmet - Great helmet for the price. O'Neal dud a great job with the engineering aspects. Very comfortable, well padded, full face coverage keeps the wind off your face, much quieter on windy rides, sun protection visor for sunny days. Face protector visor easily retractable. Liked mine so I ordered one for my wife as well
Review: Yes, you need a sun visor - In my opinion, this helmet hit a home run. I've only had it for a few weeks but the quality seems to far surpass the value. I like the silver/gray color scheme a lot and I love the sun visor. I do wish it had more vents since I live in the heat but it's fine. There is some wind noise but I think that's the nature of the beast. Sometimes there are sacrifices for such a low price but I just don't see it in this particular item. Update#1 As an addition, I am a tweener - between MD and LG - so I went with the LG. I got it, I wore it around the house and it felt snug; however, after many rides later, it does seem to have broken in to an ever so slightly, loose fit. It's possible a MD would have been a better choice. Update#2 I recently noticed that the screws to the visor were very loose. Get some blue loctite on those before you lose them.

## Features

- Fit type: Universal Fit
- Sierra II Helmets run small if between sizes order next larger size

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01K9GN7FE |
| Best Sellers Rank | #10,934 in Automotive ( See Top 100 in Automotive ) #24 in Motorcycle & Powersports Helmets |
| Brand | O'NEAL |
| Brand Name | O'NEAL |
| Color | Flat Black |
| Compatible with Vehicle Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Customer Reviews | 4.6 out of 5 stars 3,103 Reviews |
| Global Trade Identification Number | 04046068488004 |
| Included Components | helmet |
| Item Type Name | Sierra Helmet R |
| Item Weight | 3.5 Pounds |
| Manufacturer | O'Neal |
| Material | Composite |
| Material Type | Composite |
| Model Number | 0817-505 |
| Shape | Aerodynamic |
| Shell Type | Hard |
| Specification Met | DOT FMVSS 218 |
| Sport | Motorcycling |
| Sport Type | Motorcycling |
| Style Name | full-face-helmet-style |
| Vehicle Service Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles |
| Warranty Description | See Manufacturer Site |

## Product Details

- **Color:** Flat Black
- **Brand:** O'NEAL
- **Vehicle Service Type:** ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles
- **Item Weight:** 3.5 Pounds
- **Material:** Composite

## Images

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

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ For the price, one great dual sport riding helmet
*by J***N on November 26, 2025*

Great helmet for the price. O'Neal dud a great job with the engineering aspects. Very comfortable, well padded, full face coverage keeps the wind off your face, much quieter on windy rides, sun protection visor for sunny days. Face protector visor easily retractable. Liked mine so I ordered one for my wife as well

### ⭐⭐⭐⭐⭐ Yes, you need a sun visor
*by M***P on October 8, 2025*

In my opinion, this helmet hit a home run. I've only had it for a few weeks but the quality seems to far surpass the value. I like the silver/gray color scheme a lot and I love the sun visor. I do wish it had more vents since I live in the heat but it's fine. There is some wind noise but I think that's the nature of the beast. Sometimes there are sacrifices for such a low price but I just don't see it in this particular item. Update#1 As an addition, I am a tweener - between MD and LG - so I went with the LG. I got it, I wore it around the house and it felt snug; however, after many rides later, it does seem to have broken in to an ever so slightly, loose fit. It's possible a MD would have been a better choice. Update#2 I recently noticed that the screws to the visor were very loose. Get some blue loctite on those before you lose them.

### ⭐⭐⭐⭐⭐ Great product.
*by J***H on October 12, 2025*

I LOVE these helmets - quality products, lower jaw protection is greater than many helmets. Worth the money. Are well made - run tight, but that might be a far better design. You want 'hamster cheeks' in a good helmet. Their outer transparent visor seems thicker than many offerings. I'd love to see an O'Neal helmet with an in-built auto brake sensor light -- there are clip-on VERY HIGH-QUALITY brake light offerings that some manufacturer should license and build it into a helmet. Worth a big premium.

## Frequently Bought Together

- O'Neal Sierra Helmet
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*