Onguard Bulldog STD U-Lock

Our best-selling U-locks feature best-in-class X2P Double Bolt lock mechanisms and a robust 13mm (0.51”) hardened steel shackle, delivering a full circle of protection. Designed for cyclists and power sport users.

• Standard length Bulldog U-Lock provides strong, reliable security for everyday use.
• X2P Double Bolt Locking Mechanism secures the shackle on both sides, offering maximum pull resistance.
• NEW Z-Cylinder is bump-proof, effectively resisting picking, pulling, and drilling for enhanced protection.
• 13mm (0.51”) hardened steel shackle withstands cutting, prying, and jacking attempts.
• Rounded design with centered keyway eliminates potential pry points, deterring tampering.
• NEW double rubber-coated crossbar cover safeguards your bike’s paint and finishes from scratches and abrasions.
• NEW extra-thick molded end caps protect against impacts and bumps for long-lasting durability.