The Citycat universal plug-in chain fits many different frame locks with a plug-in option. Because the plug-in chain is universal, it is easily interchangeable between various bicycle locks. Consider the popular plug-in frame locks from Abus, AXA, Trelock and Lynx. The models are listed at the bottom of this page. The plug-in chain has a length of 120 centimeters, making it easy to attach to a lamppost or fence. The 5.3 millimeter thick hardened steel links in combination with the plug-in pin provide good theft protection. The links are covered with a soft nylon cover to protect the frame from damage. Plug-in pin diameter: 10 mmPlug-in pin length: 48 mm Suitable for: Trelock RS450, RS452, RS453 Axa Fusion, Defender, Solid, Victory, Block XXL All Abus locks Lynx Lazo