Bicycle Anti-Theft Security Chain Lock With 5-Digit Password

Key Selling Points

Alloy Chain, Upgraded Strength: The chain body is made of high-strength alloy material, with hardness and toughness far exceeding ordinary iron chains. Its resistance to hydraulic shears and sawing is significantly improved, providing enhanced anti-theft performance.

5-Digit Password, Thousands of Combinations: Upgraded to a 5-digit combination lock cylinder, boasting 100,000 possible password combinations. It is resistant to cracking and peeping, offering a security level far exceeding that of 4-digit locks, providing peace of mind without keys.

Fully Encased Nylon Sheath, Scratch and Rust Proof: The alloy chain is wrapped in a thickened, wear-resistant nylon sheath to prevent scratches on the vehicle's paint, while also effectively preventing rust, dust, and water damage, extending the lock's lifespan.

Flexible and Portable Storage: The alloy chain has excellent flexibility, allowing for flexible bending and winding, saving space. Combined with an integrated lock head structure, it is sturdy, durable, and extremely convenient to use.

Product Highlights

Strong Alloy, Unbreakable: Made with a high-strength alloy chain, its high density and impact resistance easily withstand violent shearing and sawing, making it an upgraded replacement for traditional iron chains and protecting your vehicle.

Upgraded Combination, Doubled Security: A 5-digit precision combination wheel ensures smooth rotation and accurate positioning, significantly reducing the chance of being cracked; the keyless design avoids the embarrassment of losing or forgetting your key.

Full Coverage Protection, No Damage to Your Vehicle: The outer nylon sheath fits snugly against the chain, completely isolating it from friction with the vehicle body, preventing scratches and wear on the paint, balancing theft prevention with aesthetics.

Multi-functional Adaptability, Flexible and Stable: The moderate chain length allows for flexible wrapping around frames, railings, lampposts, and is suitable for securing bicycles, electric bikes, scooters, suitcases, and other items.

Applicable Scenarios

Bicycle/Electric Bike Anti-theft: Ideal for daily commuting, shopping, and parking on campus for mountain bikes, road bikes, commuter electric bikes, and mopeds. An essential anti-theft accessory.

Outdoor Travel Protection: For long-distance cycling, commuting to work, and temporary parking in shopping malls/supermarkets, lock your vehicle anytime to effectively reduce the risk of theft.

Other Valuable Item Locking: Can be used to lock strollers, scooters, suitcases, outdoor camping equipment, warehouse supplies, etc., offering multiple uses and providing safety and convenience.

Public Area Protection: Provides basic anti-theft protection for valuable vehicles in public parking areas such as apartment building corridors, outdoor plazas, and office building entrances.

Why Choose Us?

High-Quality Materials, More Durable Alloy: Utilizing a pure high-strength alloy chain, far superior to inferior iron/plated iron chains, it is resistant to rust and breakage over long-term use, ensuring both sturdiness and durability.

5-Digit High-Security Anti-Theft: Compared to the common 4-digit locks on the market, the 5-digit combination doubles the number of possible combinations, making it virtually impossible to crack, making it more suitable for users with high security requirements.

Comprehensive protection, impeccable details: The outer nylon sheath not only prevents scratches but also isolates it from rain and dust, preventing chain corrosion and lock cylinder malfunction, making it more reliable for outdoor use.

High cost-performance, a practical choice: Alloy material + 5-digit combination + full protective sheath, offering top-of-the-line features for its price range. Suitable for daily commuting and long-distance cycling, its cost-performance far surpasses similar products.

Purchase Tips

After receiving the goods, please set the initial 5-digit combination and remember it. It is recommended to use numbers that are easy to remember and difficult to be seen. Change the combination regularly to enhance the anti-theft level.

After unlocking, please scramble the combination to prevent others from following and peeking. When setting the combination, ensure that the number wheels are aligned with the scale to prevent misalignment that may cause unlocking failure.

After long-term outdoor use, you can periodically apply a small amount of lubricant to the connection between the lock cylinder and the chain to keep it turning smoothly and extend its lifespan. Avoid prolonged immersion in water and keep the lock body dry.

This product is a basic anti-theft tool. It is recommended to use it in conjunction with the vehicle's own anti-theft device. For valuable vehicles parked unattended, additional protective measures should be taken.

What's in the box
1 x Safety Chain Lock