--- product_id: 46248470 title: "Sierra Helmet, Flat Black LG" brand: "o'neal" price: "€ 425.29" currency: EUR in_stock: true category: "O'neal" url: https://www.desertcart.fr/products/46248470-sierra-helmet-flat-black-lg store_origin: FR region: France --- # 12 vents for superior airflow Lightweight 1590g for all-day comfort ABS Shell for ultimate protection Sierra Helmet, Flat Black LG **Brand:** o'neal **Price:** € 425.29 **Availability:** ✅ In Stock ## Summary > 🏍️ Gear up with O'Neal Sierra – where protection meets performance in sleek flat black! ## Quick Answers - **What is this?** Sierra Helmet, Flat Black LG by o'neal - **How much does it cost?** € 425.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/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 - • **Breathe Easy:** 12 strategically placed vents and moisture-wicking liner keep you cool and dry - • **Seamless Vision:** Integrated, height-adjustable face shield for clear, fog-free sightlines - • **Race-Ready Safety:** DOT & ECE 22.05 certified shell keeps you protected on every ride - • **Effortless Comfort:** Removable, washable air-channeled liner plus padded chin strap for all-day wear - • **Secure Fit, No Slip:** Double-D safety lock and side goggle traction pad lock your gear in place ## Overview The O'Neal Sierra Helmet in Flat Black combines a durable ABS shell with lightweight design (1590g) and advanced ventilation (12 vents) to deliver top-tier protection and comfort. Featuring a moisture-wicking, removable liner, integrated adjustable face shield, and secure double-D chin strap, it meets DOT and ECE 22.05 safety standards, making it ideal for street, enduro, and adventure riders seeking reliable, stylish head protection. ## 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 | #11,072 in Automotive ( See Top 100 in Automotive ) #49 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 2,676 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 | 1.0 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 ![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. ## 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.fr/products/46248470-sierra-helmet-flat-black-lg](https://www.desertcart.fr/products/46248470-sierra-helmet-flat-black-lg) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-07-21*