--- product_id: 4165425 title: "Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8\" Shackle, Black" brand: "master lock" price: "€ 70.52" currency: EUR in_stock: true category: "Master Lock" url: https://www.desertcart.gr/products/4165425-master-lock-8170d-6-1-8-inch-wide-u-lock store_origin: GR region: Greece --- # Double-locking shackle for max security Hardened steel body resists cutting & prying 8-inch shackle fits most bike frames Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black **Brand:** master lock **Price:** € 70.52 **Availability:** ✅ In Stock ## Summary > 🔐 Lock in your ride’s safety, unlock your freedom. ## Quick Answers - **What is this?** Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black by master lock - **How much does it cost?** € 70.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/4165425-master-lock-8170d-6-1-8-inch-wide-u-lock) ## Best For - master lock enthusiasts ## Why This Product - Trusted master lock brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Portability:** Includes a sleek carrier bracket for easy transport without adding bulk or weight. - • **Lifetime Peace of Mind:** Backed by Master Lock’s limited lifetime warranty—security that lasts as long as your ride. - • **Rugged Hardened Steel Build:** Crafted from alloy steel to withstand serious cutting and prying attempts. - • **Perfect Fit for Urban Riders:** 6-1/8 inch wide body with 8-inch shackle fits most bike frames and racks effortlessly. - • **Unmatched Anti-Theft Defense:** Double-locking mechanism doubles your bike’s protection against thieves. ## Overview The Master Lock 8170D is a heavy-duty U-lock designed for serious cyclists who demand top-tier security. Featuring a 6-1/8 inch wide hardened steel body and an 8-inch double-locking shackle, it offers superior resistance to cutting and prying. Lightweight yet robust, it comes with a convenient carrier bracket and two keys, backed by a limited lifetime warranty—making it the trusted choice for urban and suburban riders alike. ## Description The Master Lock U-Lock is engineered for those who value their ride. This bicycle lock offers unparalleled security to ensure your bike stays right where you left it. It is crafted from hardened steel that can withstand significant impacts and resist all manner of attempts at tampering or cutting. This makes it an exceptional choice among bike locks for anyone serious about anti-theft security. The bike lock body is 6-1/8-inches wide with an 8-inch shackle length. Whether you are locking up your bicycle in a bustling urban environment or a quieter suburban area, trust that this heavy-duty bike lock has you covered. Its imposing presence alone deters would-be thieves before they even think about attempting anything nefarious. But what sets this U-lock bike apart from others? The answer lies in its intuitive design and ease of use. Despite its strength and durability, the Master Lock 8170D U-Lock is incredibly user-friendly. It boasts a double-locking mechanism providing twice the security while ensuring quick access when you need to unlock it swiftly. Lightweight yet sturdy, this U-lock fits easily into most backpacks or bike accessory bags without weighing you down. Investing in the Master Lock U-Lock means investing in long-term security for your precious ride. Unlock superior protection now with Master Lock: where studied design meets impenetrable strength. ## Features - Outdoor heavy duty bike U-lock is best used as a bicycle lock.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. - U-shaped steel bike lock with key; Includes carrier bracket for easy transportation - Bike lock features a hardened steel body and double locking shackle for superior cutting and prying resistance - Bike lock body is 6-1/8 in. (16 cm) wide, with 8 in. (20 cm) shackle length, 4 in. (10 cm) width and 1/2 in. (13 mm) diameter - Includes one u-lock bike lock, two keys ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0017L4PAC | | Additional Features | Heavy Duty | | Best Sellers Rank | #298 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Bike U-Locks | | Brand Name | Master Lock | | Color | Black | | Control Method | Touch | | Controller Type | Hand Control | | Customer Reviews | 4.5 4.5 out of 5 stars (5,015) | | Finish Types | Vinyl Coating | | Global Trade Identification Number | 00071649222771 | | Included Components | U-lock bike lock, two keys, and a carrier bracket | | Item Dimensions | 9.8 x 7.33 x 1.33 inches | | Item Type Name | U Lock | | Item Weight | 2 pounds | | Lock Type | Key Lock | | Manufacturer | Master Lock | | Manufacturer Part Number | 8170D | | Manufacturer Warranty Description | Limited Lifetime Warranty | | Material Type | Alloy Steel, Rubber | | Model Name | 8170D | | Model Number | 8170D | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 1 | | Recommended Uses For Product | Bike | | Shape | U Shape | | Style Name | Lock | | UPC | 071649222771 | | Unit Count | 1 Count | ## Product Details - **Brand:** Master Lock - **Item dimensions L x W x H:** 9.8 x 7.33 x 1.33 inches - **Lock Type:** Key Lock - **Material:** Alloy Steel, Rubber - **Special Feature:** Heavy Duty ## Images ![Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Image 1](https://m.media-amazon.com/images/I/51aWlO8agvL.jpg) ![Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Image 2](https://m.media-amazon.com/images/I/31vmy328EXL.jpg) ![Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Image 3](https://m.media-amazon.com/images/I/51LO73qWRyL.jpg) ![Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Image 4](https://m.media-amazon.com/images/I/41QaLWTMhRL.jpg) ![Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Image 5](https://m.media-amazon.com/images/I/6139mlVh37L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Frequently Bought Together - Master Lock 8170D, 6-1/8 inch Wide U-Lock with 8" Shackle, Black - Master Lock Bike Lock Cable with Combination Black, 8143D - Ascher Ultra Bright USB Rechargeable Bike Light Set, Powerful Bicycle Front Headlight and Back Taillight, 4 Light Modes, Easy to Install for Men Women Kids Road Mountain Cycling Black --- ## 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.gr/products/4165425-master-lock-8170d-6-1-8-inch-wide-u-lock](https://www.desertcart.gr/products/4165425-master-lock-8170d-6-1-8-inch-wide-u-lock) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-25*