Keeper 785 heavy duty chain lock

Updated 2026-09-05

This 2.8 ft chain lock offers a flexible alternative to traditional U-locks, allowing for easier attachment around large poles or multiple bikes. The 7mm four-sided chain links are crafted from 3t manganese steel, providing a high level of resistance to cutting and prying. It is designed for quick stops in urban areas.

The chain is encased in a durable weather-resistant nylon sleeve that prevents the metal links from scratching the bicycle's paint. This sleeve also makes the chain more comfortable to handle and carry, as it can be easily coiled and stored in a backpack or wrapped around a seat post during transit.

The integrated lock head features a high-security disc-style cylinder that is pick and drill resistant. The hardened deadbolt design provides extra holding power against physical attacks. Two ergonomic keys are included, ensuring reliable access and smooth operation of the locking mechanism throughout the life of the product.

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House: Kryptonite
Listed: Heavy duty bike locks Heavy duty chain locks
Groups: Heavy duty bike locks Heavy duty chain locks