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Kryptonite Evolution Series 4 1090 Integrated Chain Lock

Kryptonite Evolution Series 4 1090 Integrated Chain Lock

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Product Description

The Kryptonite Evolution Series 4 1090 chain lock is a truly exceptional mid-range security system for moderate to high crime areas. Each hardened triple heat-treated boron manganese steel chain is 10mm thick and six sided - you won't find better at this price point.

Nylon webbing is a great feature on the Evolution Series 4 as it protects your paint work from getting scratched and helps make portability easier. The chain lock comes with 3 steel keys, one of which is a lighted LED key - making night time locking much easier.


  • The hardened triple heat-treated boron manganese steel chains include 10mm six-sided links
  • The integrated chains secure with a new patent-pending integrated 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 extensive holding power of the link itself against attacks
  • Chains are enclosed in a nylon-webbing sleeve to protect paint from scratches and allow for easy portability and tight coiling during storage
  • Comes with 3 stainless steel keys including a lighted LED key with replaceable battery and 2 new, ergonomic ’I’ keys
  • One key is lighted for easy access at night; replaceable battery insures that light can be used as long as the lock. The new ’I’ keys make opening a disc-style cylinder much smoother

Occasionally, without notice, manufacturers change product design and/or specifications.