Upgraded Size & Enhanced Security: Built for stronger protection, this ergonomic heavy-duty U lock weighs 3.4 lb and features an 18 mm hardened steel shackle that withstands up to 12 tons of hydraulic cutting force. Available in 4 sizes; this measures 7.8 x 9.2 in (outer) and 5.5 x 7 in (inner), making it ideal for securing wide-fork bikes, fat-tire bikes, motorcycles, e-bikes, and scooters to bike racks, fences, or poles. Also includes a 6 ft x 0.4 in steel cable for added locking flexibility
3 Backup Keys for Peace of Mind: Includes 3 solid brass keys that resist bending and breaking. Keep one with you and store the other two at home or in the office, so you'll always have a spare if your primary key is lost or forgotten. Enjoy worry-free access to your bike whenever you need it
Dust Cover & Silicone Protection: The keyhole is protected by a built-in dust cover that helps keep out sand, dirt, and debris to prevent blockage and ensure smooth unlocking. The heavy-duty 2.5 mm silicone cover adds water resistance while helping resist rust and corrosion. It also protects your bike frame from scratches, keeping both your lock and bike in great condition
Versatile Security: Use the U lock alone or together with the included steel cable to secure up to 4–5 bicycles. It's also ideal for protecting e-bikes, motorcycles, scooters, gates, fences, grills, ladders, toolboxes, sports equipment, lawn mowers, lawn equipment, and more. ❤️Note: Mounting bracket is not included
Advanced Protection & Great Gift Idea: Designed with a double deadbolt locking system and a precision-engineered high-quality zinc alloy lock cylinder, this U lock helps resist cutting, sawing, hammering, drilling, picking, and leverage attacks for enhanced theft protection. It also makes a practical gift for students, family members, friends, and cycling enthusiasts—especially those who regularly park their bikes on campuses, outside cafés, or at shopping centers