TWICE AS SECURE AGAINST BICYCLE THEFTIt couldnt be simpler “ with this frame lock chain made of hardened steel, you have the perfect secondary security for your bicycle.The ADAPTOR CHAIN Frame Lock Chain from ABUS makes it particularly easy to make your bicycle twice as secure: simply place the chain around a fixed object, pull the end with the lock through the ring on the chain and attach it to the lock housing. You will not need another key, nor will you need to lock the shackle separately. The ADAPTOR CHAIN Lock Chain is suitable for use with all models of ABUS frame locks.Technology:6 and 8 mm thick, square chain made of hardened steelSeparate locking of the shackle is not necessaryOpens up a lot of opportunities for locking the bicycle on to a fixed objectSuitable for use with all models of Abus frame locks