The OnGuard Bulldog STD U-Lock delivers dependable everyday security for commuters and city cyclists. Its 13 mm hardened-steel shackle resists cutting and leverage attacks, while the X2P Double Bolt mechanism secures both sides of the shackle for enhanced strength. The Z-Cylinder core protects against picking, drilling, and bumping for long-term reliability. A rubber-coated crossbar and endcaps help protect your bike’s paint from scratches, and the included mount bracket makes carrying easy. Includes five laser-cut keys. Dimensions: 115 x 230 mm (4.53 x 9.06″).

• Dependable Daily Security: X2P Double Bolt mechanism locks both sides of the shackle to block prying and twisting, delivering trusted protection for urban riders and commuters.
• Optimized Locking Size: Internal locking area of 115 x 230 mm (4.53 x 9.06″) provides practical reach for securing bikes to racks, poles, and railings.
• Tough 13 mm Hardened Steel Shackle: Strong steel construction helps resist cutting, leverage, and jacking attacks in city environments.
• Advanced Z-Cylinder Core: Precision locking cylinder defends against drilling, picking, and bumping for reliable long-term anti-theft performance.
• Complete Lock Kit Included: Comes with five laser-cut keys and an all-tube mount bracket for convenient on-bike storage.


Manufacturer Sku: 8010
Todson Sku: 45008010