--- product_id: 46248470 title: "Sierra Helmet, Flat Black LG" brand: "o'neal" price: "COP 1559481" currency: COP in_stock: true reviews_count: 13 category: "O'neal" url: https://www.desertcart.co/products/46248470-sierra-helmet-flat-black-lg store_origin: CO region: Colombia --- # 12 vent holes for optimal airflow Lightweight 1590g ABS shell DOT & ECE 22.05 certified safety Sierra Helmet, Flat Black LG **Brand:** o'neal **Price:** COP 1559481 **Availability:** ✅ In Stock ## Summary > 🏍️ Gear up like a pro—style, safety, and comfort in one sleek package! ## Quick Answers - **What is this?** Sierra Helmet, Flat Black LG by o'neal - **How much does it cost?** COP 1559481 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/46248470-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 - • **Race-Proven Safety:** Ride with confidence backed by DOT & ECE 22.05 certifications—protection that meets the highest standards. - • **Featherlight Comfort:** At just 1590g, the ABS shell keeps you agile and fatigue-free on every adventure. - • **Integrated Face Shield:** Seamlessly switch between sun and shade with the height-adjustable visor—no extra gear needed. - • **Breathe Easy Ventilation:** 12 strategically placed vents and moisture-wicking liner keep your head cool and dry, no matter the miles. - • **Secure Fit, All Ride Long:** Padded chin strap with double-D safety lock and side goggle traction pad ensure your helmet stays put, ride after ride. ## Overview The O'Neal Sierra Helmet in Flat Black combines race-tested ABS shell construction with DOT and ECE 22.05 safety certifications, delivering lightweight protection at 1590g. Featuring 12 vents and a moisture-wicking, removable liner, it ensures superior ventilation and comfort. The integrated, height-adjustable face shield and padded double-D chin strap provide convenience and secure fit for street, enduro, and adventure riders alike. ## 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 | #13,702 in Automotive ( See Top 100 in Automotive ) #54 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 2,682 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 ![Sierra Helmet, Flat Black LG - Image 1](https://m.media-amazon.com/images/I/817dW7TVNlL.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. ### ⭐⭐⭐⭐⭐ Snug *by S***T on December 14, 2023* First motocross style helmet. My previous helmet years ago was a street bike full face. I sent the first one back because the padding made it way too tight. Ordered an XL and it is very snug also. I’m confident that my head would be protected in a crash. Difficult to get eye glasses on after putting on the helmet. The sunshade thing on top catches quite a bit of air when riding on the highway. I looked into removing it but it is part of the hinge for the shield. The inner tinted sun shield touches my big nose when I drop it down and isn’t dark enough to really help much. The venting seems to work well. Enough air moving to keep the shield from fogging but not enough to dry out my old eyes. The padding seals well around the neck. It has been very comfortable for the autumn riding I’ve been doing. Haven’t used it on any hot days yet. Overall I like this helmet. Good value for the money. Order big if you are between two sizes. ## 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.co/products/46248470-sierra-helmet-flat-black-lg](https://www.desertcart.co/products/46248470-sierra-helmet-flat-black-lg) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-08-28*