Trelock frame lock rs 561 art2

The RS561 frame lock is designed for demanding cyclists who do not compromise on technology and safety. At the center is the robust 8.5 mm bracket made of hardened steel, now in a square shape to significantly increase resistance to bolt cutters and sawing attacks. When tampered, a special twist mechanism ensures that the shackle locks itself within the lock housing – a crucial detail that makes all the difference when it counts.

The housing is consistently designed for maximum stability: instead of riveted parts, a fully welded steel shell is used, which completely eliminates lateral access points. The RS561 is fully compatible with TRELOCK's plug-in chain system. This allows the bicycle to be additionally secured to fixed objects simply and efficiently - safe and user-friendly. The construction is completed by a newly developed high-security cylinder. The asymmetrical milling, protected recesses and improved coding technology make unauthorized opening attempts virtually impossible. Inner diameter is 72mm