Ummmmmmm..........I've got a Dunlop 200 on my rear, and I didn't modify anything :icon_think:
Ummmmmmm.......if you've wedged that thing onto the stock 5.5" rim you've altered both the intended profile and width. That thing must handle like a dream. :icon_think:
:icon_imwifstupid: That tire must have a pretty good dome effect going on