I'm thinking around 4.5", right?

I'll be running 235 kumho v700 esctas.

I'd like to know as soon as possible so I can order the wheels...

 

Measuring Backspacing

To measure it, bolt a flat piece of metal or wood to your hub using 2 studs.
Towards the end of the metal, drill a hole and screw a long bolt through it.
This bolt should be 1 radius from the hubs centerline (If you will be putting
on 26" dia tires, the bolt should be 13" from the hubs centerline). Spin the
measuring tool around, and screw the bolt in untill it no longer touches
anything. The length of the bolt is your max backspacing. If you have
suspension pieces jutting in the wheelwell, try different bolt locations to
make sure nothing is in the way. Do this with the wheels turned left and right
as well.

Rim Width / 2 = Centerline
Centerline + Offset + Rim Lip = Backspacing

8" wide rims / 2 = 4" Centerline
4" centerline + 0.63" Offset + 0.25" Lip = 4.88" Backspacing

13 X 235 V700 have a 9.0" section width on and 8" rim.

 

5 inch backspace works.

Any width greater than Honda's factory 5 inch wheel width, 5 inch backspace, will be added to the outside.

So, on a 13 inch by 9 inch, the extra four will be to the outside.

Read this NOW!