Kryptonite Evolution Series 4 1090 Integrated Chain Lock

This item is designed to provide convenient bicycle protection in moderate to high crime areas. The hardened triple heat-treated boron manganese steel chains include 10mm six-sided links to help protect against cutting attacks by damaging cutting tools.

The integrated chains are secured with a new patent-pending integrated Kryptonite Evolution Series 4 lock head. This innovative series of chains also feature a patent-pending pin-less design which secures the chain to a hardened deadbolt and allows for no weak leak in the chain due to the extensive holding power of the link itself against attacks.

The chain is enclosed in a nylon-webbing sleeve to protect your bike frame’s paint from scratches and allow for easy portability and tight coiling during storage. Each Kryptonite Evolution Series 4 1090 chain comes with three stainless steel keys including a lighted LED key with a replaceable battery and two ergonomic ‘I’ keys. These make opening a disc-style cylinder much smoother.