Password chain lock bicycle anti-theft chain lock

🔒 Heavy-Duty Combination Bike Chain Lock – Anti-Theft, Keyless & Adjustable Length (60–150cm)

Keep your bicycle, scooter, or motorcycle safe with our heavy-duty chain lock with 4-digit combination. Designed for serious riders and daily commuters, this keyless bike lock is built to resist bolt cutters and theft attempts — offering superior protection on the go.

🛡️ Strong Anti-Theft Protection

Built with a 5.2mm hardened anti-shear steel chain, this lock is engineered to resist bolt cutters, hacksaws, and other theft tools. Its durable construction makes it a perfect choice for outdoor use in high-theft urban environments.

• ✔️ High-strength steel for maximum cut resistance
• ✔️ Weather-resistant, anti-rust coating
• ✔️ Peace of mind when leaving your bike unattended

🔐 Ultimate Keyless Security

Say goodbye to keys. Our 4-digit resettable combination lock is made with a zinc alloy cylinder and a reinforced locking mechanism to prevent picking or bumping. The lock ensures easy access for you — and no access for thieves.

📏 Flexible Length Options for All Needs

Available in multiple lengths (60cm / 90cm / 120cm / 150cm), this chain lock adapts to different usage scenarios. Whether locking up one bicycle or several, or even a motorcycle, you’ll have the flexibility to secure your ride to fixed objects with ease.

• 🚲 60–120cm: Ideal for securing one bike’s frame and wheel
• 🏍️ 150cm: Secure two bikes or a bike and a motorcycle together

🔄 Easy to Set & Reset Your Code

Setting your own combination is simple:

1. Enter the default code to open the lock
2. Turn the side knob to "reset" position
3. Set your new code, aligning digits with the arrow
4. Return the knob to its original position

Tip: Make sure you remember your new code. No key needed — ever!

🚴 Perfect for Daily Commuters, Students, and Cyclists

Whether you're locking up your bicycle at a campus bike rack, outside your apartment, or at the office, this bike lock chain with combination gives you serious security and peace of mind. Great for cyclists, e-bike riders, delivery workers, and families alike.

💬 Why Choose This Chain Lock?

• ✅ Hardened steel chain resists cutting and sawing
• ✅ Resettable 4-digit combination – no key hassles
• ✅ Flexible length to lock multiple bikes or parts
• ✅ Portable, weather-resistant, and built to last