Maybe even 3/8 to 1/2" or 1.5cm. I need to go look at mine, will do that today.
One thing is to be sure the rotors are both equal distance from the wheel. What i mean is, if both sides aren't built/designed symmetrically then a different measuring point must be used. I seem to recall it being unequal from side to side when I laid it down to change the tire, could be wrong, that's was 5 yrs ago.
I tried gauging off the bolt bosses on the forks, but I think the sight angles are different in the pics.
Looks like the inner brake pads are really thin, I wonder if the wear is angled. And the tire pattern looks equal, have you put any miles on it?
Look at the top of the forks, where the caps are. Are they an equal amount above the triple tree? Not sure that could do it, but it's a spot to look at, have seen a few bikes that were really unequal there.
Will throw a tape measure on mine. You have the end of the tape on the flat part of the wheel bead, or the very edge of the wheel where it's rounded?