Bulldog Medium DT U-Lock (8015M)

The OnGuard Bulldog Medium DT U-Lock delivers strong everyday protection and locking versatility for urban riders and commuters. Its 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 helps defend against drilling, bumping, and picking. A co-molded rubber-coated crossbar protects bike paint and finishes from scratches. Built for dependable daily use, the Bulldog Medium DT balances durability, security, and convenient portability. Includes five laser-cut keys and a universal mount bracket for easy on-bike transport. Dimensions: 90 x 175 mm (3.55 x 6.90").

• Medium U-Lock Versatility: 90 x 175 mm (3.55 x 6.90") internal locking area combined with a 4 ft cable secures both frame and wheels for everyday urban protection.
• X2P Double Bolt System: Locks both sides of the shackle to resist pulling, twisting, and prying attacks in high-traffic parking areas.
• Hardened Steel Construction: 11–13 mm tempered steel shackle helps resist cutting and leverage attempts while maintaining balanced portability.
• Advanced Z-Cylinder Core: Precision lock cylinder helps prevent drilling, bumping, and picking attempts for dependable anti-theft performance.
• Complete Lock Kit: Includes five laser-cut keys, a 4 ft vinyl-coated cable, and a universal mounting bracket for convenient daily transport.


Manufacturer Sku: 8015M
Todson Sku: 45008015M