---
product_id: 452338642
title: "Sierra Helmet, Black/Gray MD"
brand: "o'neal"
price: "₩524008"
currency: KRW
in_stock: true
reviews_count: 13
category: "O'neal"
url: https://www.desertcart.kr/products/452338642-sierra-helmet-black-gray-md
store_origin: KR
region: South Korea
---

# Polycarbonate/ABS aerodynamic shell Integrated retractable sun visor DOT & ECE certified safety Sierra Helmet, Black/Gray MD

**Brand:** o'neal
**Price:** ₩524008
**Availability:** ✅ In Stock

## Summary

> 🛵 Gear up smart, ride fearless with O'Neal Sierra!

## Quick Answers

- **What is this?** Sierra Helmet, Black/Gray MD by o'neal
- **How much does it cost?** ₩524008 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/452338642-sierra-helmet-black-gray-md)

## 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:** Height-adjustable, retractable face shield blocks glare and wind for all-day comfort.
- • **Ride with Confidence:** Meets rigorous DOT FMVSS 218 & ECE 22.05 safety standards for ultimate protection.
- • **Engineered for Comfort:** Lightweight 120g shell with premium padding reduces fatigue and wind noise on long journeys.
- • **Secure Fit, Every Time:** Padded chin strap with double-D safety lock ensures a snug, reliable fit on every ride.
- • **Sleek & Functional Design:** Aerodynamic black/gray polycarbonate shell blends style with high-performance durability.

## Overview

The O'Neal Sierra Helmet in Black/Gray is a lightweight, aerodynamic full-face helmet crafted from durable polycarbonate/ABS. It features an integrated, height-adjustable sun visor and a padded chin strap with a double-D safety lock. Certified to meet both DOT FMVSS 218 and ECE 22.05 standards, it offers professional-grade protection and comfort for off-road motorcycling enthusiasts.

## Description

In 1970, Jim O'Neal began attending his races with some spare tires and parts to sell to local riders. Jim’s first big product was Preston Petty fenders. “Those Fenders were hot. Off Road racing was just getting serious and everyone needed the better parts, apparel and accessories to compete. It was then that Jim O’Neal Distributing Inc. was born. Features: Polycarbonate/ABS Shell construction - 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 FMVSS 218 and ECE 22.05 safety standards - Designed for Street, Enduro, Side by Side and Adventure Bike’s

Review: Great entry level helmet - Really nice helmet at price point! It’s comfortable, stylish with many features found in more expensive models
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 at 23" - 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. Update#3 After some time, the LG does cause unbearable crown pressure. It's mostly loose left to right. Update#4 I bought a MED and confirmed the outer shell and inner padding of both LG and MED are identical in size. They share the same shell and the difference lies in the EPS core. Unfortunately, the MED mostly caused forehead pressure and wasn't the solution to the LG. This is unfortunate dilemma of a tweener.

## Features

- Polycarbonate/ABS Shell construction
- Integrated face shield
- Height adjustable helmet shield
- Padded Chin Strap with Double-D safety lock
- Meets DOT FMVSS 218 and ECE 22.05 safety standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095WC8433 |
| Best Sellers Rank | #14,489 in Automotive ( See Top 100 in Automotive ) #61 in Motorcycle & Powersports Helmets |
| Brand | O'NEAL |
| Brand Name | O'NEAL |
| Certificate Type | DOT |
| Color | Black/Gray |
| Compatible with Vehicle Type | off-road-motorcycles |
| Customer Reviews | 4.6 out of 5 stars 2,670 Reviews |
| Included Components | Full Face Helmet |
| Item Type Name | Sierra Helmet R |
| Item Weight | 120 Grams |
| Manufacturer | O'Neal |
| Manufacturer Part Number | 0818-703 |
| Material | Polycarbonate (PC) |
| Material Type | Polycarbonate (PC) |
| Model Name | Sierra R Helmet |
| Model Number | 0818-703 |
| Number of Items | 1 |
| Shape | Aerodynamic |
| Shell Type | Hard |
| Specification Met | DOT, ECE |
| Sport | Motorcycling |
| Sport Type | Motorcycling |
| Style Name | Black/Gray |
| Unit Count | 1.0 Count |
| Vehicle Service Type | off-road-motorcycles |
| Warranty Description | See Manufacturer |

## Product Details

- **Brand:** O'NEAL
- **Color:** Black/Gray
- **Item Weight:** 120 Grams
- **Material:** Polycarbonate (PC)
- **Vehicle Service Type:** off-road-motorcycles

## Images

![Sierra Helmet, Black/Gray MD - Image 1](https://m.media-amazon.com/images/I/71wycCami0L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great entry level helmet
*by S***R on June 4, 2026*

Really nice helmet at price point! It’s comfortable, stylish with many features found in more expensive models

### ⭐⭐⭐⭐⭐ 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 at 23" - 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. Update#3 After some time, the LG does cause unbearable crown pressure. It's mostly loose left to right. Update#4 I bought a MED and confirmed the outer shell and inner padding of both LG and MED are identical in size. They share the same shell and the difference lies in the EPS core. Unfortunately, the MED mostly caused forehead pressure and wasn't the solution to the LG. This is unfortunate dilemma of a tweener.

### ⭐⭐⭐⭐⭐ 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

## Frequently Bought Together

- O'Neal Sierra Helmet
- KEMIMOTO Tactical Gloves for Men, Touchscreen Motorcycle Gloves with Hard Shell & Palm Padding for Sports Motorcycle Cycling Tactical Airsoft Paintball Hunting Hiking Camping Climbing

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**Shop now:** [https://www.desertcart.kr/products/452338642-sierra-helmet-black-gray-md](https://www.desertcart.kr/products/452338642-sierra-helmet-black-gray-md)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-06-20*