Kryptonite Kryptolok 915 Bike Chain Lock, 5 Feet Long Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence

The Kryptonite KryptoLok Series 2 Integrated Chain includes 9mm four-sided chain links made from 3t manganese steel and secures with a new patent-pending KryptoLok Series 2 Lock Head with talon deadbolt.In the early 1970s, Michael Zane was a free-spirited, bearded kid with a VW van and a big idea for a new kind of lock. He traveled thousands of miles showing the unique U-shaped locking device and spreading his passion for bicycle security to bike dealers all around the country and forged lifetime relationships. The company soon expanded its product line to include powersports, hardware and snowsports security.