--- product_id: 46248470 title: "O'Neal Sierra Helmet, Flat Black LG" brand: "o'neal" price: "4228 DH" currency: MAD in_stock: true reviews_count: 13 category: "O'neal" url: https://www.desertcart.ma/products/46248470-oneal-sierra-helmet-flat-black-lg store_origin: MA region: Morocco --- # 12 vents for optimal airflow Lightweight 1590g for all-day comfort ABS shell for rugged protection O'Neal Sierra Helmet, Flat Black LG **Brand:** o'neal **Price:** 4228 DH **Availability:** ✅ In Stock ## Summary > 🏍️ Ride Bold, Ride Protected – The Sierra Helmets Means Business! ## Quick Answers - **What is this?** O'Neal Sierra Helmet, Flat Black LG by o'neal - **How much does it cost?** 4228 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/46248470-oneal-sierra-helmet-flat-black-lg) ## 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 - • **Comfort That Lasts:** Moisture-wicking, removable liner with air channels for fresh, all-day wear. - • **Race-Proven Safety:** DOT & ECE 22.05 certified shell keeps you protected on every ride. - • **Integrated Sun Shield:** Height-adjustable face shield blocks glare without compromising visibility. - • **Secure Fit Confidence:** Padded chin strap with double-D safety lock and side goggle traction pad for stability. - • **Versatile Adventure Ready:** Designed for street, enduro, and off-road riders craving style and function. ## Overview The O'Neal Sierra Helmet in Flat Black combines a durable ABS shell with a lightweight 1590g design, featuring 12 strategically placed vents for superior airflow. Certified to DOT and ECE 22.05 standards, it offers integrated, height-adjustable face shield protection and a moisture-wicking, removable comfort liner. Perfectly engineered for street and off-road riders, it ensures secure fitment with a padded double-D chin strap and goggle traction pad, making it a top choice for millennial adventurers who demand style, safety, and comfort. ## 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: Looks great once you get the right size - I had an issue with my first order because the size I picked didn’t fit me correctly, so I had to exchange it. Once I got the right size, though, I was really happy with it. The helmet looks great in person and the flat white finish gives it a really clean look. It feels solid, the interior padding is comfortable, and once properly fitted it sits securely without feeling awkward. Visibility is good and it doesn’t feel excessively heavy on my head. Definitely make sure you check the sizing carefully before ordering, but after getting the correct size, I have no complaints. It looks awesome and feels like a quality helmet. 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 - 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 | |---------------|-------| | ASIN | B01K9GN6C8 | | Best Sellers Rank | #13,284 in Automotive ( See Top 100 in Automotive ) #48 in Motorcycle & Powersports Helmets | | Brand | O'NEAL | | Brand Name | O'NEAL | | Certificate Type | DOT | | Closure Type | Hook & Loop | | 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 2,683 Reviews | | Finish Type | Glossy | | Global Trade Identification Number | 04046068487991 | | Included Components | helmet | | Item Type Name | Sierra Helmet R | | Item Weight | 3.5 pounds | | Manufacturer | O'Neal | | Manufacturer Part Number | 0817-504 | | Material | Polycarbonate (PC) | | Material Type | Polycarbonate (PC) | | Model Name | Sierra R Helmet | | Model Number | 0817-504 | | Number Of Vents | 12 | | Number of Items | 1 | | Shape | Aerodynamic | | Shell Type | Hard | | Specification Met | DOT FMVSS 218 | | Sport | Motorcycling | | Sport Type | Motorcycling | | Style Name | Full-face-helmet-style | | Unit Count | 1 Count | | Vehicle Service Type | ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles | | Warranty Description | See Manufacturer | ## Product Details - **Brand:** O'NEAL - **Color:** Flat Black - **Item Weight:** 3.5 pounds - **Material:** Polycarbonate (PC) - **Vehicle Service Type:** ATV, PWC, off-road-motorcycles, street-cruiser-motorcycles, street-touring-motorcycles ## Images ![O'Neal Sierra Helmet, Flat Black LG - Image 1](https://m.media-amazon.com/images/I/817dW7TVNlL.jpg) ![O'Neal Sierra Helmet, Flat Black LG - Image 2](https://m.media-amazon.com/images/I/81GPlMFuOrL.jpg) ![O'Neal Sierra Helmet, Flat Black LG - Image 3](https://m.media-amazon.com/images/I/71fV50qgO-L.jpg) ![O'Neal Sierra Helmet, Flat Black LG - Image 4](https://m.media-amazon.com/images/I/81oNndG5dGL.jpg) ## Available Options This product comes in different **Color, Size** options. ## 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 ### ⭐⭐⭐⭐⭐ Looks great once you get the right size *by R***Z on August 9, 2026* I had an issue with my first order because the size I picked didn’t fit me correctly, so I had to exchange it. Once I got the right size, though, I was really happy with it. The helmet looks great in person and the flat white finish gives it a really clean look. It feels solid, the interior padding is comfortable, and once properly fitted it sits securely without feeling awkward. Visibility is good and it doesn’t feel excessively heavy on my head. Definitely make sure you check the sizing carefully before ordering, but after getting the correct size, I have no complaints. It looks awesome and feels like a quality helmet. ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ 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 ## Frequently Bought Together - O'Neal Sierra Helmet - Seibertron Unisex BMX MX ATV MTB Racing Mountain Bike Bicycle Cycling Off-Road/Dirt Bike Gloves Road Racing Motorcycle Motocross Sports Gloves Touch Recognition Full Finger Glove - O'NEAL Element Dirt Bike Boots --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ma/products/46248470-oneal-sierra-helmet-flat-black-lg](https://www.desertcart.ma/products/46248470-oneal-sierra-helmet-flat-black-lg) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-08-17*