OnGuard BullDog Series U-Lock - 3.5 x 5.5", Keyed, Black/Yellow, Includes bracket

The best-selling Bulldog series u-locks offer excellent security and have best-in-class features to keep your bike safe in medium-crime areas X2P Double Bolt Locking Mechanism locks shackle on both sides Z-Cylinder is bump-proof and resists picking, pulling, or drilling Hefty 11-13mm hardened steel shackle resists cutting, prying, and jacking Rounded design and centered keyway eliminate pry points Double rubber coated crossbar cover protects paint and finished Extra thick molded end caps protect against bumps and hits 5 laser-cut keys, 1 with micro-LED All-tube mounting bracket included Size: 3.55" x 5.52" Weight:  8 lbs Security Rating: 65