I am in the process of getting MB Battles for my Z and have some tire fitment
questions.

I am going to be getting 18x9.5 +15 all the way around, I have the touring wheels and as you know they are 18x8/8.5 and I am curious as what size tire would I need to run to stay almost exact or just close to the stock size as I dont want to have issues with my speedo being off.

I am also lowered quite abit on Stance SS coilovers. I like the stancy look but I do not want a hella streched tire either, something stock looking or slightly meatier, I also want a bit of an aggressive set up as I would like to start getting in to the AutoX and drifting field...

thank you for you help hope I explained enough.

 

Wrong section, bud.

 

Same wheel set up as me.
I run 275/40/18 and 255/40/18

thats about as close to stock circumference as you will get. It is like .2% off.

 

Alright thanks, that's a little meatier when I'd like to run since I'm lowered I like to tuck a bit of tire...

And I asked in the general area because it was just a general question if you want to put my thread some where else then please do but it's still just a general question...

 

Im Running 245/40/18 and 275/40/18 with RPF1s also +15. Its perfect circumference wise. Tires that size are standard for wheels this wide (9.5F and 10.5R). If you consider that meaty and want a bit of a stretch then go a size smaller or 2 if you want it to be noticeable.

Keep in mind on your size tires 225/40/18 and 255/40/18 wont look like much of a stretch but youll be able to tuck

 

Touring factory size is a 245/45R 225/45F where did a 255 come in?

But thank you again I'm just trying to get an idea size to not mess with the speedo much cause I've dealt with it in the past and don't wanna mess up this car.

 

The 255/40 and 275/40 combo mentioned or 275/35 front and 275/40 rear would be your most ideal combo.