The rotor does not spin straight. It is not the rotor, it is brand new. Something is bent within the suspension... what could it be?

 

Do you mean that the whole wheel wobbles, or just the rotor?
If your suspension was bent, the wheel/rotor should still spin properly/straight, just not in the right direction. If the rotor itself is spinning out of line then take it off and make sure theres no **** or something between it and the hub face, and when your putting it back on tap it in with the butt end of a hammer or peice of wood, and ensure the retaining bolts are in fully.

 

i have seen brand new rotors not spin true. the best thing to do would be to take the rotor off and set up a dial indicator on the flat surface that the rotor presses against and check for true there. Then mount the rotor and put a few lug nuts on without the wheel and check for true again.

 

Ok, its when you spin it it moves to the left and back to the right (you are looking at it straight on)

 

Like wobbling...

 

rotors can come warped when shipped out to you, one of mine did too, but i put the wheel on, and my wheel didn't wobble, so i fucked it, and just left it, but i think it's warped from shipping! If you're steering wheel doesn't shake when you brake, it shouldn't matter, but if it does, and you think it's worth the hassle of returning it, then do that!