The OnGuard Pitbull STD U-Lock delivers strong, reliable bike security for commuters and riders parking in medium- to high-risk areas. Built with a 14 mm (0.55 in) hardened steel shackle and advanced X4P Quad Lock mechanism, the lock secures the shackle on four sides to resist cutting, prying, twisting, and leverage attacks. Its balanced interior dimensions of 115 mm × 230 mm (4.53 in × 9.06 in) provide enough space to lock around racks and posts while minimizing leverage opportunities. The rubber-coated shackle and co-molded crossbar help protect bike frames from scratches and corrosion during daily use. Includes five precision laser-cut keys, and a universal mounting bracket for convenient on-bike transport.

• X4P Quad Lock Security: Four-sided locking mechanism secures the shackle at multiple points to resist pulling, twisting, and leverage attacks.
• 14 mm (0.55 in) Hardened Steel Shackle: Heavy-duty hardened steel construction provides strong resistance against bolt cutters and prying tools.
• Balanced Locking Dimensions: 115 mm × 230 mm (4.53 in × 9.06 in) interior space provides secure fit around racks, posts, and frames while maintaining portability.
• Rubber-Coated Protection: Co-molded crossbar and protective shackle coating help prevent scratches and corrosion on bike frames and components.
• Complete Security Kit: Includes five laser-cut keys and a universal mounting bracket for easy bike transport and everyday convenience.


Manufacturer Sku: 8003
Todson Sku: 45008003