the top outside edge of the tyre is hitting the lip of the rear arch you can just make it out on the tyre where it hitting as its not like there is a groove formed in the tyre I have a different yoko on my spare and the walls on that don't bulge out as much I would go back to the same tyres as before but just cant remember when it actually started happening the springs where fitted with the floor jacked up and it has neg camber at rear