Built to guard your gear in medium to high-risk areas, the Mastiff Series brings muscle and innovation to the table. With tough, titanium-reinforced links and advanced locking tech, these chain locks offer dependable security—and a few thoughtful extras, too.
- Titanium-Reinforced, Hardened Steel Chain that’s designed to resist cutting, sawing, and prying attempts—these links don’t back down
- Paint-Safe Chain Cover A durable fabric sleeve keeps your bike’s finish flawless. The embroidered logo adds style that won’t fade or flake
- Smart Locking Power with the X2P Double Bolt that has a dual-point lock for ease of mind
- Bump-Proof Z-Cylinder Advanced tumbler resists picking, pulling, and drilling—so your lock doesn’t become the weakest link
- Tough co-molded crossbar cover protects from scuffs, while all-metal endcaps take the hits and drops without flinching
- Weather-Ready automatic keyway cover keeps the internals clean and dry—even in messy conditions
- With 5 laser-cut keys, including 1 with a micro-LED light for easy nighttime access
