Bulldog Medium DT U-Lock (8015M)

The OnGuard Bulldog Medium DT U-Lock delivers strong everyday protection and locking versatility. Its 7-inch (180 mm) hardened-steel shackle pairs with a 4 ft vinyl-coated braided steel cable to secure frames and wheels simultaneously. The X2P Double Bolt system locks both sides of the shackle for superior pull and twist resistance, while the Z-Cylinder core defends against drilling and picking. A co-molded rubber-coated crossbar protects bike paint and finishes. Includes five laser-cut keys (one with LED light) and a universal mount bracket for quick transport on any bike.

• Comprehensive Security: Medium 7 in shackle with 4 ft braided steel cable provides dual-point protection for both frame and wheels, ideal for daily commuters or city riders needing strong reliable lockups.
• X2P Double Bolt System: Locks each side of the shackle independently to withstand pulling and twisting attacks, offering superior resistance compared to single-bolt U-locks in its class.
• Hardened Steel Strength: 11–13 mm tempered steel shackle resists cutting, prying and leverage tools while maintaining medium-weight portability for urban and campus security use.
• Z-Cylinder Core: High-precision locking core prevents bumping, drilling and picking attacks, providing smooth operation and long-term reliability in adverse weather conditions.
• Key Set & Bracket Included: Comes with five laser-cut keys (one with LED light) and a universal mount bracket for on-bike transport and easy daily use in urban environments.


Manufacturer Sku: 8015M
Todson Sku: 45008015M