Protect your bike with the Kryptonite STD with 4′ Flex Cable. Get the security of a standard U-lock with the flexibility of a cable. Made with 8mm, 6-sided hex-links of hardened steel, it comes with a 4′ flexible braided steel cable for more locking options. The cable is strong and optimum length for securing both wheels and the frame. Get peace of mind knowing youve got top-notch bike security.