OnGuard Rock Solid 8590 U-Lock

ONGUARD ROCKSOLID 8590 ANGLE GRINDER PROOF D-LOCK 

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.

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.

Features & Benefits

• 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.

Velo City does not carry all goods available for purchase online. Time for collection may vary depending if the products are required to be sourced from off-site warehouses. The process can take a few days (normally anywhere between 2-10 working days). If you are worried about a delay please feel free to email or call us.

Free Shipping for orders over $150. *this excludes bikes, bulky items & rural deliveries. Items classified as bulky items or a rural delivery do incur a fee, as specified in the shipping section at checkout.

Due to international policy, all bikes purchased online must be shipped to an approved bike store for professional assembly by a qualified bike mechanic—they cannot be delivered directly to your address.

If you're interested in a bike, contact us and we'll help arrange delivery to a participating store near you.

Please note that delivery to another store will incur freight and assembly charges. Any applicable costs will be confirmed with you by our online team before your order is shipped.

All products are covered by manufacturers warranty. If you do need to send items back to us please make sure that you have read our returns policy.