My struts are 9 inches between the forward most mount points on the struts, it's about 8 5/8 between the rear. I actually thought, due to a post by one of our members (can't remember his name), that I'd be grinding the struts on the insides to fit this fender in between... according to you that won't be necessary. We'll see when it arrives on my door step.
If my memory is correct, the '08 Road King has a 170 rear tire.... I have a 160, shouldn't be a problem.