Centuro 860 The Duo For Twice The Security With 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 Steel-O-Flex Centuro 860 Coil Cable Lock comprises 20mm-thick, overlapping steel sleeves made of specially hardened steel which cover the steel cable inside, thereby providing double the security. It is considerably more difficult to sever that cable than one in a simple cable lock. ABUS particularly recommend using the Steel-O-Flex Centuro 860 to secure high-quality bikes and as protection in areas with a medium risk of theft.