Kryptonite's Evolution Series 4 1016 Integrated Chain is a 10mm-thick, six-sided link chain made of triple-heat-treated, boron-manganese steel for maximum strength. At over five feet long, the Evolution gives you plenty of chain to lock up multiple bikes. The links are covered with a weather-resistant nylon sleeve that protects your bike's finish. It uses an integrated high-security cylinder that is pick and drill resistant and thwarts most cutting tools. Three keys are included, including one that has a high-intensity LED bulb for convenient, easy unlocking in the dark. This chain has an anti-theft protection offer of $2,250, too.
The included lighted key makes nighttime security a snap!
This lock is part of Kryptonite's Key Safe Program. Register your key number with Kryptonite. If you lose your keys, you can get your first set of replacement keys for free.