OnGuard RockSolid D-Lock Sold Secure Diamond - 175mm

Onguard RockSolid D-Lock Sold Secure Diamond - 175mm

The Onguard RockSolid D-Lock 175 mm is rated Sold Secure Diamond and sets a new standard in bike security. Built from a proprietary blend of ultra high-strength materials and featuring a multi-layered defence system, it is specifically designed to resist angle grinder attacks. The hardened, shrouded shackle delivers exceptional protection against cutting and brute force, while its advanced construction ensures that attempts to breach the lock are effectively neutralised. Despite its heavy-duty performance, the RockSolid is surprisingly easy to handle and is the lightest angle grinder resistant lock available, combining unmatched security with everyday practicality.