--- product_id: 46248470 title: "O'Neal Sierra Helmet, Flat Black LG" brand: "o'neal" price: "HK$3056" currency: HKD in_stock: true category: "O'neal" url: https://www.desertcart.hk/products/46248470-oneal-sierra-helmet-flat-black-lg store_origin: HK region: Hong Kong --- # 12 vents for optimal airflow Lightweight 1590g comfort ABS Shell for rugged protection O'Neal Sierra Helmet, Flat Black LG **Brand:** o'neal **Price:** HK$3056 **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?** HK$3056 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 - • **Breathe Easy:** 12 strategically placed vents with moisture-wicking liner keep you cool and dry. - • **Sun-Ready Shield:** Integrated, height-adjustable face shield with sun visor for glare-free adventures. - • **Rock-Solid Safety:** ABS hard shell meets DOT & ECE 22.05 standards for trusted impact protection. - • **Featherlight Comfort:** At just 1590g, ride all day without fatigue or pressure points. - • **Secure Fit Confidence:** Padded chin strap with double-D safety lock and goggle traction pad for zero-slip rides. ## Overview The O'NEAL Sierra Helmet in Flat Black LG combines advanced ABS shell construction with a lightweight 1590g design, featuring 12 ventilation ports and a moisture-wicking, removable liner for all-day comfort. It includes an integrated, adjustable face shield with sun visor and a padded double-D chin strap for secure, reliable fitment. Certified to DOT and ECE 22.05 safety standards, this full-face helmet is engineered for street, enduro, and adventure riders seeking premium protection 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. ## 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 | #13,096 in Automotive ( See Top 100 in Automotive ) #60 in Motorcycle & Powersports Helmets | | Brand | O'NEAL | | Brand Name | O'NEAL | | 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 2,675 Reviews | | 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 | 1.0 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. ## 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.hk/products/46248470-oneal-sierra-helmet-flat-black-lg](https://www.desertcart.hk/products/46248470-oneal-sierra-helmet-flat-black-lg) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-14*