Wait a second, those particular Krpts are the most expensive locks they offer. How expensive is the bike your going to be locking up? Why spend $150 in locks for a $100 bike...not saying your bike is worth $100 but do see where I'm going here? You shouldn't spend more the 10% of the value of the bike for a lock or locks.

I did say locks in the last word of the last sentence, why? Because you should use two locks not one. Use a U-bolt lock then use the thickest armored cable lock you can find. Why, because it takes two different tools to defeat those locks, and a would be bike jacker won't be carrying two sets of tools with him to do a job he'll just move onto a bike where his tool will work.