Black combination nine millimeter chain lock

This black combination chain lock offers a keyless security solution for cyclists who prefer the convenience of a code. The five-digit resettable combination allows for thousands of possible variations, making it extremely difficult for unauthorized users to guess. The four foot length provides plenty of reach for securing a bicycle to a variety of fixed structures.

The chain is constructed from 9.5mm four-sided links made of manganese steel, providing a robust barrier against bolt cutters and saws. The integrated lock head design eliminates the need for a separate padlock, which simplifies the locking process and removes a common point of failure. This streamlined construction is both efficient and highly effective for daily use.

A durable nylon sleeve covers the steel links to protect the bicycle's finish from scratches and dings. The combination dials are designed for easy visibility and smooth operation, even when wearing gloves. This model is a reliable choice for riders looking for a heavy-duty chain that does not require carrying a physical key.