Hi
I've got a 125 with some US CD66 replica wheels that have been on for a couple of years. https://autoricambi.us/cd-66-style-wheels-15-x-7-set-of-4/ They are 15x7 and 23 offset. Fit perfectly, very snug at the rear which is just how I like it, no rubbing but wouldnt want to be any wider track there. No issues at the front either. With 205/50 15's the steering etc is very similar to the 185/70 13's that were originally on it prior to mods, of course the suspension is lower, stiffer etc now so apples to oranges. The track width is a bit wider but wheel centrelines not much different to original, maybe a cm or two wider.