Trelock Ring Lock RS 561 ART2

Unrivaled Security for Your Urban Ride.

Protect your bike with cutting-edge technology designed for riders who demand nothing less than the best in safety and durability. The RS 561 ring lock features a robust 8.5 mm hardened steel shackle in a square profile, engineered to resist bolt cutters and saw attacks with unmatched strength. A unique self-locking mechanism activates upon tampering, securing the shackle firmly within the lock body—a game-changing detail that ensures your bike stays locked down when it matters most.

Built for maximum stability and resilience, the lock housing is crafted from a fully welded steel shell, eliminating weak points caused by riveted parts and blocking all lateral access attempts. Seamlessly compatible with TRELOCK’s plug-in chain system, it allows for quick and efficient extra locking to fixed objects, combining security with user-friendly convenience. The package is completed by a newly developed high-security cylinder featuring asymmetric milling, protected recesses, and advanced coding technology that virtually nullifies unauthorized opening attempts.

Key Features

• 8.5 mm hardened steel square shackle for superior cut resistance.
• Self-locking shackle mechanism that activates under manipulation.
• Fully welded steel housing for maximum structural integrity.
• Eliminates lateral access points to prevent forced entry.
• Compatible with TRELOCK plug-in chain system for enhanced security.
• High-security cylinder with asymmetric milling and advanced coding.
• User-friendly design for quick and reliable locking.

Technical Specifications

• Designed for demanding cyclists who refuse to compromise on technology and safety.
• Robust 8.5 mm hardened steel shackle in square shape to increase resistance against bolt cutters and saw attacks.
• Special self-locking mechanism that locks the shackle inside the lock housing upon manipulation.
• Lock housing made from a fully welded steel shell, eliminating riveted parts and lateral access points.
• Fully compatible with TRELOCK’s plug-in chain system for additional locking options.
• Newly developed high-security cylinder with asymmetric milling, protected recesses, and improved coding technology.
• Inner diameter of the lock: 72 mm.

Frequently Asked Questions