18x9.5 +27 (235/45)
18x9 + 14 (225/45)
on my r34, had to roll the rear 1/4s.
i put the 9.5 at the front cause the 9" stuck out so i swapped them around.
the 9" fits perfect on the back anyway due to the offset, might throw in a 5mm slip on spacer to make it right up against the guard.