Kryptonite KryptoFlex Key Cable

No, this cable is designed as a secondary security measure. Kryptonite recommends using it alongside a U-Lock to secure components like your front wheel or seat, rather than relying on it alone to secure your frame to a fixed object.

The cable is 6 feet long, which provides plenty of length to loop through your front wheel, frame, and back to a U-Lock or bike rack. Its 3/8-inch diameter offers a balance between flexibility for wrapping and enough thickness to deter opportunistic theft.

The lock comes with two keys that are registerable through Kryptonite's Key Safe Program. If you lose your keys, you can use your registration number to order replacements directly from the manufacturer.

The lock features a sliding weather guard that protects the cylinder from dirt, water, and road grime, which helps prevent jamming. While it is low-maintenance, it is good practice to occasionally use a bicycle-specific lock lubricant if the cylinder feels stiff.

The rotating lock head allows you to position the keyhole for easier access, regardless of the angle at which the cable is wrapped around your bike or the rack. This makes locking and unlocking significantly more convenient, especially in tight spaces.