Thanks for all the pictures and info. I run 28psi on all the 5 rears I have went through if I dont I always seem to wear the center. I am thinking for peace of mind I may purchase a small spacer. Time to do some more searching.
They sell both 3 and 5 mm spacers. I like you was skeptical so I had a 5mm spacer ready but didn't need it. With QA 1 shocks I have about a 1/4 inch clearance on both shock and swingarm with stock offset on 12" wheel. Hope this helps. 😁