not sure if im double posting.. but what size tires should u get if you buy 18" rims on the xB? What size keeps the same tire diameter as stock as to not mess up the speedo?

all apologies if im double posting. please direct me to the correct thread if i am. Thanks!

 

Start here:
https://www.scionlife.com/forums/vie...?t=348&start=0

 

Here are some quick calculations:

205/35/18 Diameter Difference: -0.43%
215/35/18 Diameter Difference: +0.76%
195/35/18 Diameter Difference: +1.56%
195/40/18 Diameter Difference: +1.66%
225/30/18 Diameter Diffenence: -1.82%
225/35/18 Diameter Diffenence: +1.91%
205/40/18 Diameter Difference: +2.91%

Now you have to choose how wide you want to go.

 

i have the Pirelli 215/35/18, and a 2" drop, and they still don't fill my wheelwell all the way, so i would advise to get a 45 series tire to fill the wheelwell all the way, and to give you a better ride, cuz the 35 series are really rough riding.

 

hey kellen I would personally go with 215/35/18 but that's just me.

 

Thats what I am on 215/35/18 toyos and I am on the RS*R 2inch drop. Feels great and there is no rubbing at all. :D

 

thanks abunch for the feed back. most websites indeed recommend 215/35/18. thanks for the good advice. :D

 

Yup, the 18 inch 215/35 series tire rolling diameter is a teeny bit taller than the stock 185/60-15 rolling diameter. So small in fact its hardly noticeable.

 

moved