OnGuard makes the meanest, toughest locks in the business.

On the inside, OnGuard locks earn the highest safety ratings with double and quad-locking mechanisms, bump-resistant cylinders, and hardened steel shackles and chains. On the outside, our locks are fully-coated to protect your bicycle or powersport vehicle from scratches and to shield internal parts from the elements, while the bright color scheme sends a clear warning to thieves: don’t even try! And then there’s the extras: all-tube mounting brackets, five laser cut keys, key-code registration, comprehensive anti-theft programs, limited lifetime warranties and the best sales and customer support team in the business.

BULLDOG

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 eliminates pry points
• Double rubber coated crossbar cover protects paint and finished
• Extra thick molded endcaps protect against bumps and hits
• 5 laser-cut keys, 1 with micro-LED
• All-tube mounting bracket included

• DoubleTeam (DT) locks come with a 4-foot full coated braided steel cable with loop ends for extra locking versatility