Bulldog Medium U-Lock (8013M)

The OnGuard Bulldog Medium U-Lock delivers strong everyday protection in a compact size designed for urban riders and commuters. Its 13 mm hardened steel shackle helps resist cutting, prying, and leverage attacks, while the X2P Double Bolt mechanism locks both sides of the shackle for added strength and stability. The advanced Z-Cylinder core provides resistance against bumping, drilling, and picking attempts for dependable long-term performance. Protective co-molded crossbar covers and rubber coatings help protect bike frames and finishes from scratches while molded end caps absorb impacts. Designed for practical city use, the Bulldog Medium balances portability and security. Includes five laser-cut keys and a universal mounting bracket for convenient on-bike storage. Dimensions: 90 x 175 mm (3.55 x 6.90").

• Compact Urban Security: Internal locking area of 90 x 175 mm (3.55 x 6.90") fits tightly around racks, poles, and modern city bike parking posts.
• Dual Locking Strength: X2P Double Bolt mechanism secures both sides of the shackle for improved resistance to twisting and leverage attacks.
• Heavy-Duty 13 mm Steel Shackle: Hardened steel construction helps resist cutting, prying, and twisting attempts in medium-risk environments.
• Advanced Z-Cylinder Core: Precision locking cylinder helps defend against drilling, bumping, and picking for reliable anti-theft protection.
• Keys & Mount Included: Includes five laser-cut keys and a universal mounting bracket for easy transport and storage.


Manufacturer Sku: 8013M
Todson Sku: 45008013M