Kryptonite Evolution Series 4 Integrated Bike Cycle Chain Lock – 55cm Length The Evolution Series 4 Integrated Chain Lock from Kryptonite provides you with Sold Secure Gold (except for the 90cm version which is NOT Sold Secure) standard of high level security bike protection. This lock features Kryptonite’s new patent pending Evolution series 4 lock which is pick and drill resistant making this chain lock much more difficult for thieves to break. 10mm six-sided chain links made from 3T Manganese Steel Patent-pending End Link Design secures chain to hardened deadbolt eliminating critical vulnerability Durable weather resistant nylon sleeve prevents scratches Patented reinforced Oval Crossbar Lock Head Sliding Dustcover protects and extends cylinder life The chain utilises Kryptonite’s new patent pending End Link Design which secures to the hardened deadbolt removing any weak points in the chain making it much more resistant to attacks. The chain is composed of 10mm six-sided hardened triple heat-treated boron manganese steel to further increase the attack resistance of the chain. The chain is wrapped with a highly durable weather resistant nylon sleeve which helps to protect your bike from scratches or damage from the chain itself. The lock head itself is reinforced oval crossbar which comes with three stainless steel keys – one LED lighted key with replaceable battery and two new, ergonomic ‘I” keys. You also have Kryptonite’s Key Safe programme which once registered you can get replacement keys for your lock and you get the first two free
