The OnGuard Mastiff 3.5 ft Chain with X4 Padlock delivers powerful dual-layer security for bikes, scooters, and powersports. The system combines a heavy-duty 10 mm titanium-reinforced hardened steel hex link chain with a compact Boxer U-lock padlock featuring the X4P Quad Lock mechanism. This advanced lock secures the shackle on four sides for maximum resistance against twisting and prying attacks. The durable 110 cm (3.57 ft) chain length offers flexible locking options around racks, poles, and posts, while the thick protective sleeve helps prevent scratches and protects paint finishes. The Z-Cylinder core provides strong resistance against bumping, drilling, and picking attempts for dependable anti-theft performance. The Boxer U-lock can also be removed and used separately as a disc lock for motorcycles, e-bikes, or scooters. Includes five precision laser-cut keys.

• Dual Protection System: Combines a Boxer U-lock with X4P Quad Lock and a heavy-duty 110 cm (3.57 ft) hardened steel chain for versatile, multi-point security.
• Heavy-Duty 10 mm Steel Links: Titanium-reinforced hexagonal chain links resist cutting, leverage, and prying attacks in high-theft environments.
• Detachable Disc Lock Function: Compact Boxer U-lock padlock can be removed from the chain and used separately as a disc lock for motorcycles and scooters.
• Advanced Z-Cylinder Security: Precision cylinder core helps resist bumping, drilling, and picking attempts for reliable anti-theft protection.
• Complete Security Kit: Includes five laser-cut keys and a durable protective sleeve to shield bike frames and vehicle finishes.


Manufacturer Sku: 8019
Todson Sku: 45008019