TWICE AS SECURE AGAINST BICYCLE THEFT It couldn’t be simpler – with this frame lock chain made of hardened steel, you have the perfect secondary security for your bicycle. The Adaptor Chain 2.0 frame lock chain from ABUS makes it particularly easy to make your bicycle twice as secure: All you have to do is place the chain around a fixed object, pull the end with the lock through the ring on the chain and attach it to the frame lock housing or the Alarmbox 2.0. You will not need another key, nor will you need to lock the shackle separately. Thanks to the special coating on the ring, the paintwork of the bicycle remains protected when it is connected. The Adaptor Chain 2.0 connecting chain fits all ABUS frame locks with additional lock housing as well as the Alarmbox 2.0.