The duo for twice the securitywith twice the protection in the form of a robust steel cable and an overlapping steel sleeve this abus coil cable lock provides twice the security.this abus bike lock makes stealing exceptionally difficult for bicycle thieves. The coil cable lock steel o flextrade centuro 860 comprises 20 mm thick overlapping steel sleeves made of specially hardened steel which cover the steel cable inside thereby providing double the security. It is therefore considerably more difficult to sever that cable than one in a simple cable lock. We particularly recommend using the steel o flextrade centuro 860 to secure high quality bikes and as protection in areas with a medium risk of theft.technology20 mm thick overlapping steel shells protect the internal steel cableplastic coating to prevent damage to the bicycles paintworkthe steel shells the case as well as supporting elements of the locking mechanism are made of special hardened steeloperation and usegood protection at medium theft riskrecommended for securing good bicyclesthe longer the cable the easier the bicycle can be locked to a fixed objecttransportquicksnap ndash one button operation with simple mount on the saddle clamp boltsquicksnap rbu ndash one button operation with flexible steel band suitable for different post shapes with a diameter of 20 42 mmvariable lock positioning owing to the rotation of the mount in 15deg intervals