---
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: "€ 32.66"
currency: EUR
in_stock: true
category: "Master Lock"
url: https://www.desertcart.ie/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u
store_origin: IE
region: Ireland
---

# Double-locking shackle for max pry resistance Hardened steel body resists cutting & sawing Compact 9-inch shackle fits most bikes 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:** € 32.66
**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?** € 32.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/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

- • **Rugged Durability:** Hardened steel construction withstands cutting, sawing, and prying attempts — built to outlast thieves.
- • **Unbreakable Security:** Double-locking shackle delivers twice the pry resistance to keep your bike safe in any environment.
- • **Effortless Portability:** Lightweight design with included carrier bracket makes transport seamless for the urban commuter.
- • **Scratch-Free Protection:** Protective vinyl coating preserves your bike’s finish while locking up in style.
- • **Quick-Access Convenience:** Integrated disc keyed locking mechanism ensures maximum pick resistance without sacrificing ease of use.

## Overview

The Master Lock 8320D Black U-Lock combines hardened steel strength with a double-locking shackle and protective vinyl coating to deliver top-tier anti-theft security for bicycles. Its 9-inch shackle fits most bike frames, while the included carrier bracket ensures easy transport. Trusted by thousands, this lock offers a perfect balance of durability, convenience, and style for serious cyclists.

## 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.

## 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 | #1,111 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Bike U-Locks #427 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 (4,925) |
| 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 |
| Manufacturer Part Number | 8320D |
| Material Type | Alloy Steel, Vinyl |
| Model Name | 8320D |
| Model Number | 8320D |
| Number of Pieces | 1 |
| Recommended Uses For Product | Bike |
| Shape | U Shape |
| Smart Home Compatibility | Not Smart Home Compatible |
| 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.

## 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
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**Shop now:** [https://www.desertcart.ie/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u](https://www.desertcart.ie/products/14091925-master-lock-black-bike-lock-with-key-standard-size-u)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-07-05*