ONGUARD 45008006M Pitbull Bicycle Lock, Black, 3.55 x 6.90-Inch

• Superior Security: X4P Quattro Bolt Locking Mechanism locks the shackle at four points for maximum security.
• Durable Construction: Hefty 14mm thick hardened steel shackle resists cutting, prying, and jacking.
• Enhanced Protection: Z-Cylinder is bump-proof and resists pucking, pulling, and drilling.
• Versatile Locking: TriRadius shackle creates more internal space for various locking options.
• Complete Set: Includes 5 laser-cut keys, 1 with micro-LED, and an all-tube mounting bracket.

The OnGuard Pitbull Medium U-Lock features a mini crossbar with a medium shackle length designed to fit around new standard parking meter posts, making it ideal for bicycle messengers. This lock offers superior protection for medium to high crime areas with its robust features, including the X4P Quattro Bolt Locking Mechanism. The 14mm thick hardened steel shackle resists cutting, prying, and jacking, while the Z-Cylinder is bump-proof and resistant to pucking, pulling, and drilling. The TriRadius shackle creates more internal space for versatile locking, and the rounded design with a centered keyway eliminates pry points. The co-molded crossbar cover and double rubber-coated shackle protect your bike's finish, and the all-metal endcaps provide additional protection against hits and drops. An automatic keyway cover helps seal the lock internals against the elements. The lock includes 9 laser-cut keys, 1 with a micro-LED, and an all-tube mounting bracket.