OnGuard RockSolid 8590 U-Lock. Diamond Sold Secure. Angle Grinder Resistant.

Introducing the OnGuard RockSolid, the pinnacle of bike lock innovation. Engineered with cutting-edge materials and advanced technology, this revolutionary lock stands as an impenetrable fortress against even the most determined thieves armed with angle grinders.X4P Quattro Bolt Locking Mechanism: Secures the shackle at four points for maximum security.Z-Cylinder: New and improved, bump-proof, and resistant to picking, pulling, and drilling.15mm (0.59) Hardened Steel Shackle with RockSolid Patented Coating: Massive and robust, resists angle grinder cutting, prying, and jacking.Centered Keyway: Enhancing security.Co-Moulded Crossbar Cover and Double Rubber Coated Shackle: Protects your bike's finish from scratches and damage.All-Metal End Caps: New and improved, providing additional protection against hits and drops.Automatic Keyway Cover: Seals the lock internals from the elements, prolonging its lifespan.Crafted from a proprietary blend of ultra-high-strength materials and reinforced