---
product_id: 66641239
title: "Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick)"
brand: "titanker"
price: "¥8328"
currency: JPY
in_stock: true
reviews_count: 13
category: "Titanker"
url: https://www.desertcart.jp/products/66641239-heavy-duty-bicycle-lock-chain-with-keys-3-feet-anti
store_origin: JP
region: Japan
---

# 6mm thick cut-resistant steel Protective cloth sleeve prevents rust & scratches Includes 2 durable keys Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick)

**Brand:** titanker
**Price:** ¥8328
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock it down, ride worry-free—security that moves with you!

## Quick Answers

- **What is this?** Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick) by titanker
- **How much does it cost?** ¥8328 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/66641239-heavy-duty-bicycle-lock-chain-with-keys-3-feet-anti)

## Best For

- titanker enthusiasts

## Why This Product

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

## Key Features

- • **Portable Power:** Compact 3-foot length and lightweight 1.4 lbs design fits easily on your bike frame or backpack.
- • **Quick Snap Locking:** Lock your bike in seconds without needing the key—perfect for fast stops and urban commutes.
- • **Dual-Key Convenience:** Comes with 2 sturdy keys—keep one handy and one safe at home for peace of mind.
- • **Unbreakable Security:** Heavy-duty 6mm alloy steel chain resists cutting and sawing attempts.
- • **Weatherproof Protection:** Protective cloth sleeve and dust cover shield chain and keyhole from rust, rain, and scratches.

## Overview

The Titanker Heavy Duty Bicycle Lock Chain offers a robust 3-foot, 6mm thick alloy steel chain designed for superior cut resistance. Featuring a protective cloth sleeve and dust cover, it guards against rust and weather damage. With two durable keys included and a quick snap locking mechanism, this lock balances convenience and security for bikes, motorcycles, gates, and more. Lightweight and portable at 1.4 pounds, it’s ideal for professionals who demand reliable, on-the-go protection.

## Description

desertcart.com : Titanker Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick) : Sports & Outdoors

Review: Great for bikers on-the-go! - This is the BEST bike lock in the world. The key is sturdy and durable, I've never had an issue with the lock. I had someone attempt to pull the lock apart when I had it clipped together and it held up astonishingly well! The inner chain is flexibly enough to adjust to whatever I lock my bike to, even if I'm just looping the lock through the weel and the frame of my bike while on a trail. 10/10 purchase!
Review: Sturdy and affordable - Locks easily. I really appreciate locks that do not require the key to lock, saves some time. It seems sturdy enough but keep in mind these are still just chain locks and are not the most secure locks. Good as a second lock, good for quick trips, or somewhere that's mostly safe like grocery stores. You can easily attach it to your bike frame and unlock it when you get to your destination. Really easy to travel with it.

## Features

- 3ft chain lock for bike: With 6mm thick security heavy-duty chain links, our bike chain lock is made of heavy-duty steel known for its cut-resistance. Regular lubrication for the lock hole and keyhole will prolong the lock’s service time.
- Protective cloth sleeve & dust cover: The chain of this bike lock is enclosed in protective cloth sleeve that could effectively protect the chain from being rusted and scratches. And the dust cover can protect your keyhole from rain and dust.
- Easy to lock: You can just snap it together to get it locked without the keys. Safety tips: Never leave your bike locked outside for long periods of time. Especially in high crime areas. No bike lock is 100% secure.
- Secure & portable: Titanker bike chain locks come with 2 keys. You can take one of the keys for daily use while leaving another at home in case you accidentally lose one. Two Keys offer you convenience.
- Portable safe size: The overall length of the chain lock is about 3 feet. The links are about 1.97 inches long and about 0.23 inches thick. Lock Weight: 1.4 pounds. Ideal for bicycles, ladders, lawnmowers, stroller, scooter, fences, tool boxes, sport equipment and etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CTMF3BP |
| Additional Features | Portable,Heavy Duty,Anti-theft |
| Best Sellers Rank | #2,133 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Bike Chain Locks |
| Brand | Titanker |
| Brand Name | Titanker |
| Color | 3 Feet, 6mm Bike Chain Lock |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 out of 5 stars 8,492 Reviews |
| Finish Types | Painted |
| Included Components | 1 x Titanker Bike Chain Lock, 2 x Keys |
| Item Dimensions | 9.21 x 4.69 x 1.65 inches |
| Item Weight | 1.4 Pounds |
| Item dimensions L x W x H | 9.21 x 4.69 x 1.65 inches |
| Lock Type | Key Lock |
| Manufacturer | Titanker |
| Manufacturer Part Number | TK-A01030 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 1030200300018 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Security |
| Shape | Round |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Portable,Heavy Duty,Anti-theft |
| Style Name | Black-6mm Chain-3Feet |
| UPC | 615517386037 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Titanker
- **Item dimensions L x W x H:** 9.21 x 4.69 x 1.65 inches
- **Lock Type:** Key Lock
- **Material:** Alloy Steel
- **Special Feature:** Portable,Heavy Duty,Anti-theft

## Images

![Heavy Duty Bicycle Lock Chain with Keys - 3 Feet Anti-Theft Lock for Bikes, Motorcycles, Doors, Gates, Fences, Grills (6mm Thick) - Image 1](https://m.media-amazon.com/images/I/81Pl1+IykmL.jpg)

## Questions & Answers

**Q: I see there are options, but what's the difference between the keyed models?**
A: The chain's thickness of the keyed models are different, two are 6mm, another one is 8mm. And the length of the two 6mm chain locks are different, one is 3.3feet long, and another one is 3 feet long.

**Q: I lost my keys and my bike is locked what can I do?**
A: Call a lock smith, or the authorities so nobody thinks your stealing a bike.

**Q: What is the lock made out of?**
A: It's made out of steel chain

**Q: Can I get Two locks with that use same key?**
A: Sorry, for safety purposes, there are different keys for each lock. Thanks!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for bikers on-the-go!
*by C***E on June 5, 2026*

This is the BEST bike lock in the world. The key is sturdy and durable, I've never had an issue with the lock. I had someone attempt to pull the lock apart when I had it clipped together and it held up astonishingly well! The inner chain is flexibly enough to adjust to whatever I lock my bike to, even if I'm just looping the lock through the weel and the frame of my bike while on a trail. 10/10 purchase!

### ⭐⭐⭐⭐⭐ Sturdy and affordable
*by N***R on March 3, 2026*

Locks easily. I really appreciate locks that do not require the key to lock, saves some time. It seems sturdy enough but keep in mind these are still just chain locks and are not the most secure locks. Good as a second lock, good for quick trips, or somewhere that's mostly safe like grocery stores. You can easily attach it to your bike frame and unlock it when you get to your destination. Really easy to travel with it.

### ⭐⭐⭐⭐⭐ pleasantly surprised
*by A***N on April 3, 2026*

So far so good - feels very quality and unique design, I like how moldable and flexible it is. It’s tough though of course I never have tried to actually break it. Fits in the back of my bike very snug and I’ve enjoyed this so far and would recommend - good value.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.jp/products/66641239-heavy-duty-bicycle-lock-chain-with-keys-3-feet-anti](https://www.desertcart.jp/products/66641239-heavy-duty-bicycle-lock-chain-with-keys-3-feet-anti)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-15*