The Kryptonite KryptoFlex 1018 Key Cable Lock Black is a reliable and durable lock that is perfect for securing your bike. The flexible braided steel cable is 10mm thick, making it difficult for thieves to cut through. The lock head rotates 360 degrees, making it easier to handle and use in tight spaces.The dual sliding cylinder weather guards with automatic close feature provide added protection against the elements, ensuring that your lock stays in good condition for longer.