OnGuard's Mastiff Chain delivers major protection for your bike in high-risk areas. Its titanium-reinforced, 10mm hexagonal links resist attacks from saws and cutters, while the burly lock resists picking, pulling, and bumping and locks on all four sides of the shackle, maximizing resistance to pulling attacks. This lock comes with five keys, including one with a built-in light.
All OnGuard locks feature integrated covers for protection from moisture and dirt.
OnGuard locks feature plastic, rubber or vinyl at all contact points to protect your bike's finish.