The OnGuard Bulldog Mini U-Lock offers Bulldog-level protection in a compact design, perfect for those who travel light and fast. Featuring the X2P Double Bolt Locking Mechanism, this U-lock provides excellent security by locking the shackle on both sides. The 11-13mm hardened steel shackle resists cutting, prying, and jacking, and the Z-Cylinder is bump-proof and resists picking, pulling, and drilling. The rounded design with a centered keyway eliminates pry points, and the double rubber-coated crossbar cover protects paint and finishes. Extra thick molded end caps offer additional protection against bumps and hits. This lock includes 10 laser-cut keys, 1 with a micro-LED, and an all-tube mounting bracket.