Topcrown Bike Chain Lock 5 Digit Combination Bicycle Lock (Black)

Price: $9.99 - $8.99
(as of Sep 18, 2026 09:14:30 UTC – Details)

Product description

Basic Series – 3.2 ft Long, 6 mm Thick

Long 3.2 feet Weight 1.45 pounds Chain 0.24 inch/6 mm thick Diameter of Head 3.3cm/1.3inch

Basic Series — The Topcrown Basic Series bike chain lock is 3.2 feet long, weighing approximately 1.45 pounds. It is crafted from a 0.24 inch/6 mm thick alloy steel chain and is available in more than 10 colors. The Basic Series products are designed to meet essential performance requirements while also offering cost-effectiveness
5-Digit Combination — Our bike chain lock provides heightened security with its 5-digit combination lock design. With over 100,000 possible combinations, it surpasses the standard 4-digit locks in terms of safety and convenience
Resetting is Simple — The default password is “00000”. To set a new password, just rotate the knob 90° to input your desired code, then move back the knob to its initial position. Your new password is now ready for use to unlock the lock
Sturdy & Durable — This bicycle lock is made from a 0.24 inch/6 mm thick alloy steel chain and a strong zinc alloy lock core that resists cutting and sawing. The fabric and PE cover protect the lock chain and core from rainwater and sand, enhancing durability
Wide Application — This bike lock chain is sufficiently long to secure 2-3 bikes together or attach your bike to a tree, gate, fence, rail, or pole. Additionally, the chain lock can be utilized for motorcycles, electric scooters, ebikes, skateboards, grills, ladders, doors, lawnmowers, and more
Customers find the bike lock easy to program and appreciate its sturdiness and security, with one noting it’s strong enough to secure different size bikes. They like its appearance, portability, and size, with one mentioning it’s large enough for two bikes. While some customers find it not too heavy, others consider it somewhat cumbersome.