I posted a question about the best tire size for my new wheel, 18-8 volk progressive ME and I have got some responses from you guys. However, It did not make sense to me, so I could not buy tires today.
I want get front tire 225/45/18 and rear tire 245/40/18.
Is there anyone who knows 245/40/18 of diameter for tire size?
Also, 225/45.18 for front and 245/40/18 for rear will be a good balance? - I don't want to get my new wheels rubbing fenders.

225/45/18 25.9
235/45/18 26.3
245/45/18 26.6
245/40/18 ?

 

must know offset of wheels to answer that question.

 

if you have 18x8's all the way around, you can just do 245-40-18's on all four corners, then you can rotate the tires as well to prolong the life.

overall diameter of 245/40/18 is 25.7"
-GP-

 

This should help, you can plug in different sizes and see how they compare:

http://www.1010tires.com/TireSizeCalculator.asp

 

As long as you don't have an X you can run 225/45 front and 245/40 rear without any issues. Both sizes are close enough to OEM specs that you shouldnt have an issues.

 

I'm running the exact same size and I'm lowered about 2inches without any problems. +38 offset

 

Hey Guys,

First off, I don't mean to hijack the thread but I figured it would be better than starting a new one.

In regards to offsets, is the higher offset, say +40, going to move the rim closer to the inside of the fender or closer to the outside of the fender?

I am thinking about getting an 18x8 rim with a +40 offset front and rear with a 245/45-18 tire. I am running the unrevised 350z springs too. I have read the charts and looked at the diagrams and it looks ok to me but I would like to hear that from you experienced guys.

Thanks.