---
product_id: 1424828
title: "Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle, 275 mm x 175 mm Frame, X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys with LED for Secure Bike Protection"
brand: "onguard"
price: "906 kr"
currency: DKK
in_stock: true
reviews_count: 8
url: https://www.desertcart.dk/products/1424828-bulldog-std-u-lock-with-4-ft-cable-13-mm
store_origin: DK
region: Denmark
---

# X2P Double Bolt Locking LED Micro-light Key 11-13mm Hardened Steel Shackle Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle, 275 mm x 175 mm Frame, X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys with LED for Secure Bike Protection

**Brand:** onguard
**Price:** 906 kr
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind, unlock your freedom.

## Quick Answers

- **What is this?** Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle, 275 mm x 175 mm Frame, X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys with LED for Secure Bike Protection by onguard
- **How much does it cost?** 906 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/1424828-bulldog-std-u-lock-with-4-ft-cable-13-mm)

## Best For

- onguard enthusiasts

## Why This Product

- Trusted onguard brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bump-Proof Cylinder:** Z-Cylinder technology resists picking, pulling, drilling, and bump attacks.
- • **Cut-Resistant Armor:** 11-13mm hardened steel shackle defies cutting, prying, and jacking attempts.
- • **User-Friendly Extras:** Comes with 5 laser-cut keys, one featuring a handy LED micro-light for low-light access.
- • **Double-Sided Security:** X2P locking mechanism secures shackle on both sides for unbeatable protection.
- • **Versatile Locking Options:** Includes 4-foot fully coated braided steel cable for flexible, multi-point locking.

## Overview

The OnGuard Bulldog DT U-Lock combines a robust X2P double bolt locking mechanism with an 11-13mm hardened steel shackle and a bump-proof Z-Cylinder for superior bike security. Its rounded design eliminates pry points, while the included 4-foot coated braided steel cable adds versatile locking options. Complete with 5 laser-cut keys—one with an LED micro-light—and protective end caps, this lock is engineered for medium crime areas and professional cyclists who demand reliable, stylish protection.

## Description

Product Description               The OnGuard Bulldog STD U-Lock comes with a fully coated 4-foot braided steel cable for extra locking options. Designed for medium crime areas, this U-lock offers superior security with the X2P Double Bolt Locking Mechanism, which locks the shackle on both sides. The 11-13mm hardened steel shackle resists cutting, prying, and jacking, and the Z-Cylinder is bump-proof and resists picking, pulling, and drilling. The rounded design and centered keyway eliminate pry points, while the double rubber-coated crossbar cover protects paint and finishes. Extra thick molded end caps offer added protection against bumps and hits. This lock includes 9 laser-cut keys, 1 with a micro-LED, and an all-tube mounting bracket.                  From the Manufacturer               NEW extra thick molded end caps protect against bumps and hits. 10mm fully coated braided steel cable allows for extra locking versatility.

## Features

- Enhanced Security: X2P Double Bolt Locking Mechanism locks shackle on both sides.
- Sturdy Build: 11-13mm hardened steel shackle resists cutting, prying, and jacking.
- Advanced Cylinder: Z-Cylinder is bump-proof and resists picking, pulling, and drilling.
- Protective Design: Rounded design with centered keyway eliminates pry points.
- Complete Kit: Includes 5 laser-cut keys, 1 with LED micro-light, and dust covers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ONGUARD |
| Special Feature | Cut Resistant |
| Lock Type | U-lock |
| Item dimensions L x W x H | 2 x 4.6 x 8.35 inches |
| Material | Alloy Steel |
| Recommended Uses For Product | Bicycle security, locking bike to standard parking meter post without removing front wheel |
| Style | Modern |
| Color | Black |
| Number of Pieces | 1 |
| Included Components | OnGuard 8012 |
| Controller Type | Hand Control |
| Shape | U Shape |
| Item Weight | 3.3 Pounds |
| Control Method | Touch |
| Connectivity Protocol | X10 |
| UPC | 768661280123 |
| Model Name | Bulldog DT |
| Global Trade Identification Number | 07290001280126, 07686612801230 |
| Manufacturer | ONGUARD |
| Item Weight | 3.3 pounds |
| Product Dimensions | 2 x 4.6 x 8.35 inches |
| Item model number | 8012 |
| Is Discontinued By Manufacturer | No |
| Assembled Length | 11.6 inches |
| Weight | 1 Pounds |

## Product Details

- **Brand:** ONGUARD
- **Special Feature:** Cut Resistant
- **Lock Type:** U-lock
- **Item dimensions L x W x H:** 2 x 4.6 x 8.35 inches
- **Material:** Alloy Steel

## Images

![Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle, 275 mm x 175 mm Frame, X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys with LED for Secure Bike Protection - Image 1](https://m.media-amazon.com/images/I/71LZSGKoT8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great lock!
*by K***. on June 10, 2025*

Superb lock. It’s very big kind of bulky, kinda heavy, but it will definitely make people think twice before trying to steal your bike using this.

### ⭐⭐⭐⭐⭐ Tough.  Lousy as a Snow Shovel, But......
*by X***S on May 8, 2018*

Does it's job. Like the wide throat vs. the more narrow ones on the market. I own two of them and I think this is the one that comes with the nifty key with the built-in light.The only complaint. There is a plastic sleeve around the "U". It is not attached to the metal. Sometimes it will slide to one side and get low enough that the lock is difficult to lock up. Until I realized this was the problem, I got very frustrated with this.Last week, I got stuck in a bank of snow up in the mountains, no shovel and we used this, among other things, as a pick/shovel to dig us out. I'm sure OnGuard didn't intend that use, but just to let you know in a pinch this thing can do all sorts of stuff!

### ⭐⭐⭐⭐ Good U Lock.
*by P***Y on January 29, 2022*

This is a very good product. While not the most secure of its kind, it appears solid and well built. The included cable has proved useful, especially for free-standing lockups during quick stops. Mounting clipdoes not impress and will not be used, but the lock lays nicely on the rear rack, secured by velcro straps.Overall a good buy and works well to protect my ebike. Comes with extra keys.

## Frequently Bought Together

- OnGuard 8012 Shackle Lock, Black, 11.5 x 23.0 cm
- Sterling Sold Diamond & Gold High Security Ground/Wall Anchor, Black, GA1
- OnGuard Akita Cable Bike Lock, High Security & Reliable, Bicycle Lock With Rubber Coated Crossbar, Locks Shackle On Both Sides, Heavy Duty Steel Cycle Lock, Essential Bike Accessories

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**Shop now:** [https://www.desertcart.dk/products/1424828-bulldog-std-u-lock-with-4-ft-cable-13-mm](https://www.desertcart.dk/products/1424828-bulldog-std-u-lock-with-4-ft-cable-13-mm)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-04*