The Mastiff series offers cyclists and power sports enthusiasts more high security options in a lighter, more compact package. 10mm hex-link chains and square section bar links resist attack from saws and cutters. Quattro and dual lock mechanisms feature dual lock down protection and 4 laser-cut plus 1 TorchKey. All locks have vinyl coated large diameter ultra-hardened steel shackles and rubber coated end caps. Nylon chain covers help protect painted surfaces. Backed with an anti-theft protection program.
- Integrated X2P Locking Head: Features OnGuard’s X2P Dual Lock Down head for ultimate pull resistance, secured in a double rubber cover for added impact and weather protection during daily use.
- Heavy-Duty Chain Construction: Built from a 3.5-foot titanium-reinforced hardened steel hexagonal link chain that delivers superior strength and resistance against cutting and sawing attempts.
- Maximum Security Design: Engineered for medium to high theft-risk areas, the OnGuard Mastiff offers reliable protection for bikes, scooters, and motorcycles with robust locking performance.
- Z-Cylinder Core Protection: Equipped with a precision Z-Cylinder that resists picking, pulling, and drilling to provide advanced defense against tampering and forced entry.
- Includes Five Laser-Cut Keys: Comes with 5 unique laser-cut keys, including one with a built-in micro LED light for easy operation at night or in low-light environments.
- Integrated X2P Locking Head: Features OnGuard’s X2P Dual Lock Down head for ultimate pull resistance, secured in a double rubber cover for added impact and weather protection during daily use.
- Heavy-Duty Chain Construction: Built from a 3.5-foot titanium-reinforced hardened steel hexagonal link chain that delivers superior strength and resistance against cutting and sawing attempts.
- Maximum Security Design: Engineered for medium to high theft-risk areas, the OnGuard Mastiff offers reliable protection for bikes, scooters, and motorcycles with robust locking performance.
- Z-Cylinder Core Protection: Equipped with a precision Z-Cylinder that resists picking, pulling, and drilling to provide advanced defense against tampering and forced entry.
- Includes Five Laser-Cut Keys: Comes with 5 unique laser-cut keys, including one with a built-in micro LED light for easy operation at night or in low-light environments.
