Best chain bike locks

Our top 3 picks

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  Kryptonite Evolution 1012 Bike Chain Lock, 4 Feet Long 10mm Steel Chain Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for E-Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

  The Kryptonite Evolution 1012 Bike Chain Lock is a top-tier security solution for e-bikes and other high-value bicycles. Its 10mm hardened steel chain and reinforced oval crossbar lock head offer exceptional protection against theft, with resistance to picking and drilling. Designed with e-bikes in mind, its 120cm length ensures versatile use, while the durable rubber coating prevents scratches, enhancing its longevity. The lock includes three keys, and Kryptonite’s Key Safe Program provides peace of mind with free key replacement. Additionally, the Anti-Theft Protection Offer reimburses you if your bike is stolen due to lock failure. This lock is ideal for those seeking reliable, high-security protection for their bicycles, scooters, or motorcycles, without compromising on convenience or durability.
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  Kryptonite Keeper 712 Bike Chain Lock, 4 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Black

  The Kryptonite Keeper 712 Bike Chain Lock is a robust security solution designed for a wide range of applications, from bicycles to gates. Its 7mm four-sided chain links are crafted from 3T manganese steel, providing exceptional strength and resistance to common theft tools. The lock features a patent-pending end link design, which secures the chain to a hardened deadbolt, eliminating critical vulnerabilities. A high-security disc-style cylinder further enhances its anti-theft capabilities by resisting picking and drilling. The 48-inch chain provides ample length for versatile use, while a durable, weather-resistant nylon sleeve protects both the chain and your possessions from scratches and the elements. Customers consistently praise its durability and effectiveness, although some find the locking mechanism a bit clunky. Overall, the Kryptonite Keeper 712 offers reliable protection and peace of mind for securing valuable items in various environments.
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  NDakter Bike Chain Lock, 5 Digit Combination Heavy Duty Anti Theft Bicycle Chain Lock, 3.2/4.27/5Ft Long Security Resettable Bike Locks for Bike, Bicycle, Scooter, Motorcycle, Door, Gate, Fence

  The NDakter Bike Chain Lock offers a practical and secure solution for everyday bike security needs. Its standout feature is the 5-digit resettable combination lock, providing 100,000 possible combinations for enhanced safety. This makes it ideal for securing bicycles, scooters, gates, and more in low-risk environments. Constructed from zinc alloy and 6mm thick alloy steel, the lock is both sturdy and drill-resistant, ensuring durability and protection against theft. Users particularly appreciate the scratch-proof polypropylene fabric cover that safeguards bike frames from damage. With a length of 3.2 feet, it is versatile enough to lock multiple bikes or secure them to various structures. The lock's keyless convenience eliminates the worry of losing keys, making it a user-friendly choice for quick errands or school use. Overall, this lock is an excellent value for those seeking a reliable, easy-to-use security option without the need for high-end protection.