The hardened steel chain lock with nylon sleeve is a high-security anti-theft solution for bicycles, motorcycles and fences. Designed to provide robust and long-lasting protection, this padlock is ideal for both urban and rural environments, combining strength with tamper resistance. The chain s made of 6mm thick case-hardened steel, a material specially treated to harden its surface and increase resistance to cutting with saws or prying tools. It has a length of 90 centimetres, making it easy to secure the frame and wheels of a bicycle, or even to lock a motorcycle or moped to a fixed structure. It is also suitable for securing fence gates, doors, or railings, making it adaptable to a wide range of outdoor uses. It features a blue nylon sleeve that fully covers the chain to prevent damage or scratches to your bike or motorbike's paintwork, while also improving grip during handling. The locking system is activated with a security key, providing a strong and reliable mechanism. Includes two nickel-plated keys for convenience, allowing you to keep a backup or share access. Thanks to its practical design, this chain lock can be easily carried in a backpack, basket or even around the vehicle frame.