The ABUS Combiloop 205 is perfect for securing your gear and as a backup to a primary lock. We use it to lock helmets to bikes, lock wheels and forks to car racks, etc. It uses a 6.5-foot-long, 5mm-thick braided steel cable with a PVC coating that protects your bike's finish. The lock body is also protected with a silicone coating. The lock automatically engages for quick security and the easy-to-spin digit wheels let you set your own combination.