Kryptonite

Kryptonite make the best locks. No arguments. Having worked on security for more than 40 years now, their research, product testing and undoubtable toughness have kept everyones things where they need to be for years now. This is the company that invented the D-lock, and designers of the only lock that can stand up to the determination of thieves in New York City. Not only do they come with our utmost recommendation, Kryptonite offer an insurance scheme against the security of their locks - if it gets cropped, and you loose your bike, they'll cough up. They're putting their money where their mouth is, and with chains and locks like theirs, I can't see anyone claiming soon.