Trelock RS 561 NAZ Protect-O-Connect Frame Lock

The Trelock RS 561 frame lock was developed for demanding cyclists who do not compromise on technology and security. At its heart is a robust 8.5 mm hardened steel shackle, now in a square version to significantly increase resistance to bolt cutters and saw attacks. In the event of tampering attempts, a special turning mechanism ensures that the shackle locks itself inside the lock housing – a detail that makes all the difference when it matters. The housing has also been consistently designed for maximum stability: instead of riveted components, a fully welded steel shell is used, which completely eliminates lateral points of attack. The RS 561 is also fully compatible with TRELOCK's insert chain system. This makes it possible to secure the bike to fixed objects with a single hand movement – efficiently, easily, and securely. The design is complemented by a newly developed high-security cylinder. Its asymmetrical milling, protected recesses, and improved coding technology make unauthorized attempts to open it virtually impossible.

Highlights of the Trelock RS 561 frame lock

• Key cannot be removed when open (NAZ)
• ART2, Varefakta, FUB, and Sold Secure Silver certified
• Security Level 15
• Compatible with plug-in chains
• 2 keys included
• Key cannot be removed
• Key service
• Robust square shackle
• Fully welded lock housing
• High-security cylinder
• Inner diameter 72 mm