To lock our bike and quick-release wheels, the Kryptonite 785 Integrated Chain Lock is the ideal accessory. This chain lock features a patent-pending end-link design that secures the links to the hardened deadbolt, which helps to eliminate critical vulnerability. In other words, there are no weld seams in the links that are able to be pried open. Additionally, the disc-style lock cylinder is pick and drill resistant. The chain is 33. 5in long, which makes it easy to secure to a bike rack, tree, or other immovable object. It is sheathed in a weather-resistant nylon sleeve to prevent scratches on our bike.