Kryptonite NY Chain Bike Lock 1217 with EV 4 DISC 5'6"

12mm six-sided, chain links made of 3t hardened manganese steel for maximum strength Cinch ring design enables effective lock up with less length of chain Durable, protective nylon cover with Hook-n-Loop fasteners to hold in place Includes Evolution series 4 Disc Lock with 14mm MAX-Performance steel shackle New, higher security disc-style cylinder with more than 1 million key variations