ROCKBROS Thickened Anti-Cut U-Lock

High-Security Hardened Steel Construction This anti-theft U lock is made from high-strength, heat-treated steel to enhance hardness and overall security. The durable zinc alloy lock core is designed to resist dust and rust, ensuring reliable performance in various weather conditions. Reinforced 22mm Hardened Shackle Featuring a thickened, hardened steel shackle with a diameter of approximately 22 mm, this heavy-duty U lock offers strong resistance against cutting, drilling, and hammer attacks. The reinforced structure provides enhanced protection for high-risk urban areas. Advanced Lock Core with 3 Keys Equipped with a precision-engineered lock cylinder and a unique serpentine keyway design, this bike U lock is difficult to duplicate. Three keys are included for convenient daily use and backup access. Protective Silicone Cover A soft silicone outer coating wraps around the lock body, helping protect your bike frame from scratches while providing a more comfortable grip during handling and transport. Versatile Application Designed for multiple vehicles, this U lock for bikes is suitable for bicycles, motorcycles, and electric bikes, offering dependable anti-theft protection wherever you park.