Kryptonite locks are without a doubt the safest locks in the world. Having a Kryptonite bicycle lock means no more worries your bike might get stolen. Kryptonite's U-lock received a number of awards for design and innovation. The Kryptonite company is famous for their real-world testing, locking bicycles with Kryptonite locks on several occasions in New York's toughest streets for an extended periods of time, not failing once. Kryptonite's legendary customer service means that when they discovered in 2004 that some of their locks could be compromised, they replaced 400,000 pieces in 21 countries for free. U-locks, cable locks, disc locks, chain locks, your ride is safe and secure.