Keeper 712 hardened steel chain lock
Keyed bike locks Heavy duty bike locks Heavy duty chain locks Hardened steel locks 4ft long bike locks
This high-security set features a 14 mm six-sided chain made from 3t manganese steel paired with a 15 mm steel disc lock. The five-foot chain length allows for securing multiple bikes or reaching distant anchor points. A durable nylon sleeve protects the chain links and prevents the metal from scratching the bicycle frame during use.
The included disc lock utilizes a double deadbolt design and a high-security disc-style cylinder for maximum resistance against attacks. The 15 mm shackle is made of hardened steel, providing a secondary layer of defense that is difficult to compromise. This combination is specifically designed to thwart professional thieves using heavy-duty tools in metropolitan environments.
Users receive three stainless steel keys, one of which is equipped with a high-intensity LED for visibility in the dark. The system is built to endure extreme weather, ensuring the locking mechanism remains smooth and reliable over time. It is an ideal solution for those seeking the highest level of protection available for their cycling equipment.
Keyed bike locks Heavy duty chain locks Hardened steel locks High security bike locks 14mm thick bike locks