15x7.5 Convos ?
As a comparison, I am running the same tire, 26x11.5x15 ET Street, on a 15x10" Pro Star. They fit perfect.
I'd run a 26x11.5x15 on a 15x8 but it would be tall and would probably cup a bit. It would be worse on a narrower rim.
Perhaps look at www.mickeythompsontires.com as a reference.
I run the Convo Pro 15x10 with ET 26x11.5x15 and they fit great. Only 1 problem with Convo Pro's is their back spacing. 5" just isn't deep enough.
Now 26x10.5x15 should fit OK for ya.
David




