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 with a multi-layered defense system, the OnGuard RockSolid is virtually impervious to the cutting force of angle grinders. Its intricate structure is engineered to resist cutting, rendering any attempts to breach its fortified exterior futile.

Each component is meticulously designed and rigorously tested, ensuring unrivalled resistance to brute force attacks. The hardened, shrouded shackle is impervious to an angle grinder, defying even the most aggressive cutting attempts.

The OnGuard RockSolid not only provides unbeatable security but also offers a seamless user experience. Its ergonomic design ensures easy handling, making it the lightest angle grinder-resistant lock on the market.

Experience peace of mind like never before with the OnGuard RockSolid. Defy the odds, protect what matters most, and leave would-be thieves in awe of this unyielding fortress of two-wheel security.

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OnGuard Brute U-Lock

OnGuard RockSolid U-Lock (Angle-Grinder Resistant)

OnGuard Doberman Combo Lock 185cm x 15mm