Secure your bicycle with the Kryptonite KryptoLok STD U-Lock with 4' Flex Cable and Bracket, an essential addition to your bike for optimum security. Engineered with a hardened, 13mm Performance Steel shackle and a reinforced crossbar, this lock provides unparalleled protection for its internal components. Its patented bent-foot design and anti-rattle bumpers make lock-up a breeze, reducing noise while enhancing ease of use. The high-security, pick and drill resistant disc-style cylinder along with a patented cam resists attacks by pry bars and hammers, ensuring your bike remains safe and secure. Additionally, the included EZ mount carrying bracket allows for easy transportation. With a security rating of 6 out of 10, this lock offers reliable protection for everyday use.