Daunting Task
It is not an easy task to get things past airport security, which is actually a good thing because it keeps bad things from getting through. But despite this, there are still those who believe that if they make an effort to conceal something in an ingenious manner, they will, at the very least, have a fighting chance of getting it past the TSA.
However, it should be fairly obvious that airport security does not care how much effort was put into being creative in an attempt to conceal something. The attempt to conceal knives within the wheels of a bicycle is a good one, but it is not a foolproof strategy. The most prudent course of action is to avoid concealing knives or any other potentially dangerous items inside of anything at all.