---
product_id: 1424828
title: "Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle (115 × 230 mm) – X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys & Mount Bracket"
brand: "onguard"
price: "₱8716"
currency: PHP
in_stock: true
reviews_count: 12
category: "Onguard"
url: https://www.desertcart.ph/products/1424828-bulldog-std-u-lock-with-4-ft-cable-13-mm
store_origin: PH
region: Philippines
---

# 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 (115 × 230 mm) – X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys & Mount Bracket

**Brand:** onguard
**Price:** ₱8716
**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 (115 × 230 mm) – X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys & Mount Bracket by onguard
- **How much does it cost?** ₱8716 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/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 with 4 ft Cable offers everyday riders enhanced security and flexibility. Its 13 mm hardened steel shackle resists cutting, prying, and leverage attacks, while the X2P Double Bolt mechanism locks the shackle on both sides for extra stability. The Z-Cylinder core resists picking, drilling, and bumping, ensuring long-term reliability. Protective co-molded covers and rubber coatings help prevent scratches on your bike’s frame and components. Includes five precision laser-cut keys and a 4 ft vinyl-coated cable for securing wheels and frame simultaneously. Dimensions: 115 x 230 mm (4.53 x 9.06"). 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.

Review: Heavy construction. - This is one of those times that online doesn't really give you a good idea of the size and weight of the product. These locks are both bigger and heavier than I expected. Not that the description is not accurate it's just that I was surprised when I opened the package. The lock works fine, seems very well made and I will feel secure using it. If my bike gets stolen with this lock on it the thief will have to be very determined or professional. There is not much more I can do in either case.
Review: Good lock with excellent (versatile!) mounting system - This lock works great, and (so far) protects my bike even when locked up outside my building for hours all day or even overnight. My *only* complaint is that it tends to have a little rattle when biking and going over bumps, but that is pretty standard I think. I had trouble deciding between giving it 4 starts or 5, until I remembered how much better the mounting system for this lock is compared to other comparable locks. The mounting system for this lock is vastly more versatile, allowing my many different configurations that work on my different bikes (where as the mounting systems for other locks left me with no adequate options for a couple of my bikes, and I returned those to the store). I would definitely recommend this lock to others, and have now bought several to use on different bikes (at the same time).

## Features

- X2P Double Bolt Mechanism: Locks the shackle on both sides to provide strong resistance against twisting, pulling, and prying attacks.
- 13 mm Hardened Steel Shackle: Heavy-duty hardened steel construction delivers dependable protection against cutting and leverage attempts.
- Z-Cylinder Security Core: Advanced locking cylinder helps resist bumping, drilling, and picking for reliable long-term anti-theft performance.
- Protective Rubber Coating: Co-molded covers help protect bike paint while improving durability and corrosion resistance.
- Complete Security Kit: Includes five laser-cut keys and a 4 ft vinyl-coated steel cable for additional wheel and frame protection.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005YPKC5O |
| Additional Features | Cut Resistant |
| Best Sellers Rank | #82,391 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #58 in Bike U-Locks |
| Brand Name | ONGUARD |
| Color | Black |
| Connectivity Protocol | X10 |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.5 4.5 out of 5 stars (842) |
| Finish Types | Natural |
| Global Trade Identification Number | 07290001280126, 07686612801230 |
| Included Components | OnGuard 8012 |
| Item Dimensions | 2 x 4.6 x 8.35 inches |
| Item Type Name | Bicycle Lock |
| Item Weight | 3.3 Pounds |
| Lock Type | Key Lock |
| Manufacturer | OnGuard |
| Manufacturer Part Number | 8012 |
| Manufacturer Warranty Description | 2 year manufacturer |
| Material Type | Alloy Steel |
| Model Name | Bulldog DT |
| Model Number | 45008012 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Bicycle security, locking bike to standard parking meter post without removing front wheel |
| Shape | U Shape |
| Smart Home Compatibility | Not Smart Home Compatible |
| Style Name | Modern |
| UPC | 768661280123 |
| Unit Count | 1.0 Count |

## Product Details

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

## Images

![Bulldog STD U-Lock with 4 ft Cable – 13 mm Hardened Steel Shackle (115 × 230 mm) – X2P Double Bolt Lock, Z-Cylinder Core, 5 Keys & Mount Bracket - Image 1](https://m.media-amazon.com/images/I/71LZSGKoT8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Heavy construction.
*by J***N on April 28, 2014*

This is one of those times that online doesn't really give you a good idea of the size and weight of the product. These locks are both bigger and heavier than I expected. Not that the description is not accurate it's just that I was surprised when I opened the package. The lock works fine, seems very well made and I will feel secure using it. If my bike gets stolen with this lock on it the thief will have to be very determined or professional. There is not much more I can do in either case.

### ⭐⭐⭐⭐⭐ Good lock with excellent (versatile!) mounting system
*by B***S on April 4, 2016*

This lock works great, and (so far) protects my bike even when locked up outside my building for hours all day or even overnight. My *only* complaint is that it tends to have a little rattle when biking and going over bumps, but that is pretty standard I think. I had trouble deciding between giving it 4 starts or 5, until I remembered how much better the mounting system for this lock is compared to other comparable locks. The mounting system for this lock is vastly more versatile, allowing my many different configurations that work on my different bikes (where as the mounting systems for other locks left me with no adequate options for a couple of my bikes, and I returned those to the store). I would definitely recommend this lock to others, and have now bought several to use on different bikes (at the same time).

### ⭐⭐⭐⭐ Great lock, two small issues.
*by S***Z on July 10, 2014*

I really like this lock. It feels really beefy and is big enough to get around my bike frame and the bike rack. Also, like the cable so I can loop through my wheel. When I first got the lock, it seemed to big to mount anywhere on my bike, so I was kind of bummed, but then I read the instructions, and saw that it could be mounted on the seat stem. I was skeptical at first, thinking it would interfere with my pedaling, but after I installed it, I didn't even notice it. So that's a plus! I've only had two issues. (1) Sometimes it's difficult to get the base locked onto the 'U'. I did lube the lock with white lithium lube so I know its not jamming as the key turns easily. So I'll live with it. (2) The lock clip that attached to the my bike came unscrewed when I was mountain biking. I know it was tightened when I installed, but I guess all the bouncing down the mountain caused the screw to back out and the lock to fall off. I have since reattached and put some loc-tite on the threads. Hopefully this will hold.

## 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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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-06-03*