My 2001 ford focus shakes a lot in the steering wheel after I put wheel spacers on, what happened?

My 2001 ford focus shakes a lot in the steering wheel after I put wheel spacers on, what happened? - 1

Added (1). I put wheel spacers on my 2001 ford focus and now the steering wheel shakes and shakes a lot when I drive and brake at high speeds, are my rotors warped? What caused this to happen and how do I fix it?

Are you sure that they are tight? Why did you put in the spacers? If you didn't need them, take them off & see if the shake goes away…

I already know the risks of having wheel spacers on but why did my steering wheel shake so much?