Heavy duty four foot combination chain lock

Updated 2026-09-05

This 4 foot security chain offers a flexible and robust way to secure bicycles, gates, and fences. The heavy duty links are encased in a protective fabric sleeve to prevent metal-on-metal contact with your equipment. Its length provides ample slack for wrapping around large diameter posts or securing multiple bikes together in one go.

The 5-digit resettable combination mechanism offers 100,000 possible codes, significantly increasing the difficulty for unauthorized access. This keyless system is perfect for shared use on garden gates or for families with multiple riders. The dials are designed to be easy to read and turn, even when wearing gloves in colder weather.

Constructed from high-strength materials, the chain is built to resist common theft tools like bolt cutters. The internal locking head is reinforced to provide a solid connection point that stands up to physical force. This versatile lock is an excellent choice for home security applications or for riders who prefer the flexibility of a chain.

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