--- product_id: 14091925 title: "Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D" brand: "master lock" price: "325 kr" currency: DKK in_stock: true reviews_count: 13 category: "Master Lock" url: https://www.desertcart.dk/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u store_origin: DK region: Denmark --- # Double-locking shackle for max pry resistance Hardened steel body resists cutting & sawing Compact & lightweight for easy transport Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D **Brand:** master lock **Price:** 325 kr **Availability:** ✅ In Stock ## Summary > 🔐 Lock in peace of mind, ride with confidence. ## Quick Answers - **What is this?** Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D by master lock - **How much does it cost?** 325 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u) ## 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 - • **Built to Withstand:** Hardened steel construction resists cutting, sawing, and prying for ultimate durability. - • **Unmatched Security:** Double-locking shackle delivers twice the protection against theft attempts. - • **Pick-Resistant Design:** Integrated disc keyed locking mechanism ensures maximum lock-picking resistance. - • **Effortless Portability:** Includes a carrier bracket for seamless transport on every ride. - • **Scratch-Free Protection:** Protective vinyl coating keeps your bike’s frame pristine while locked. ## Overview The Master Lock 8320D U-Lock combines hardened steel strength with a double-locking shackle and pick-resistant disc key mechanism, delivering top-tier anti-theft protection. Its compact design and included carrier bracket make it the perfect security companion for urban cyclists who demand durability without sacrificing portability. ## 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 7-1/4 inches wide with a 9-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 8320D 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. Review: Strong and compact - Simple and nice locker. I sued for a scotter but also fits a bike easily Review: Exellence - Absolutely love this lock, the thickness gives me ease of mind. Quality is tip top especially for the price you pay for it. Comes with keys and holder for your bike that you can install. The bar unlocks from both sides making it very easy to install and unlock your bike from racks. ## Features - Hardened steel body resists cutting, sawing and prying.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. - Double locking shackle for superior pry resistance - Protective vinyl coating helps prevent scratching - Integrated disc keyed locking mechanism for maximum pick resistance - Carrier bracket included for easy transportation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00QJRKSTQ | | Additional Features | Unlock keys | | Best Sellers Rank | #3,960 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Bike U-Locks #805 in Hardware | | Brand Name | Master Lock | | Color | Black | | Connectivity Protocol | Wi-Fi | | Control Method | Touch | | Controller Type | Hand Control | | Customer Reviews | 4.5 4.5 out of 5 stars (4,827) | | Finish Types | Polished | | Global Trade Identification Number | 00071649205255 | | Included Components | Lock | | Item Dimensions | 9.8 x 7.42 x 1.35 inches | | Lock Type | Key Lock | | Manufacturer | Master Lock | | Material Type | Alloy Steel, Vinyl | | Model Number | 8320D | | Recommended Uses For Product | Bike | | Shape | U Shape | | Style Name | Lock | | UPC | 071649205255 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Master Lock - **Item dimensions L x W x H:** 9.8 x 7.42 x 1.35 inches - **Lock Type:** Key Lock - **Material:** Alloy Steel, Vinyl - **Special Feature:** Unlock keys ## Images ![Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D - Image 1](https://m.media-amazon.com/images/I/61Qpogjaf7L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Strong and compact *by J***. on March 12, 2026* Simple and nice locker. I sued for a scotter but also fits a bike easily ### ⭐⭐⭐⭐⭐ Exellence *by A***K on December 31, 2025* Absolutely love this lock, the thickness gives me ease of mind. Quality is tip top especially for the price you pay for it. Comes with keys and holder for your bike that you can install. The bar unlocks from both sides making it very easy to install and unlock your bike from racks. ### ⭐⭐⭐⭐⭐ Works great, works even better when you use it! *by W***G on March 21, 2026* This does exactly what it's supposed to do. It works great, I bought it for my son who has not been the most responsible with keeping bikes. This helps. ## Frequently Bought Together - Master Lock Black Bike Lock with Key, Standard Size U-Lock for Bicycles and Other Outdoor Equipment, Anti-Theft Lock for Bikes, 8320D - Schwinn Thrasher Bike Helmet for Adult Men Women Age 14+ with Suggested Fit 58-62cm, Multi-Mode Rear LED Light or No Light Option, Lightweight with Adjustable Side and Chin Strap, Bike Accessories - Master Lock Cable Lock, Set Your Own Combination Bike Lock, 6 ft. Long, Black, 8122D --- ## 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.dk/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u](https://www.desertcart.dk/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*