If it works for you, that’s great. It’s such a beefy chain that most thieves aren’t even going to try to mess with it.

At the moment Kryptonite make two versions of the Kryptolok. The Series 2 is the original and is rated Sold Secure Silver. The New-Uis well, new(!) and is Sold Secure Gold. You'll have to come with a different way to protect your wheels, but there's load of options and at least your bike will be safe!

We would always recommend shopping around as you can usually level up on the Sold Secure rating for similar pricing if not a bit more, for added protection. That said, thieves are unlikely to carry the largest 36″ or 42″ bolt cutters on the street, as they’re next to impossible to conceal.

The quiz above is new! If you have any problems with it, please send me a messageto let me know. Thanks.)So if you're high risk, which should it be: Gold or Diamond? Well the truth is: it's a bit complicated at the moment! If you only use it to secure your frame (tightly wrapped around your top tube), you can keep the chain shorter (and lighter). And even more significantly: it will be further from the ground so it will be much harder for a thief to crop it. Secondly, because you can wrap them around your seat post or top bar, they can be easier to transport.