I put 235/45/48 on my front wheels where it called for 225/50/18. The backs are 245/45/18 which are the stock requirement. They fit fine and don't look too wide. What are the consequences of this set up. I am thinking of going 245/45/18 all around so I can rotate the tires. Will this cause problems?

 

You should be fine with 235s. I've been running 235/45/18 on the front for a while, and no adverse effects. 225 just looked too small up front. The 235 is only .3" taller and .4" wider, so it is not that much of a difference, though some people won't like it "raising" the front end by .15", since every one seems to want MOAR LO!

Not sure on running 245s, I'm sure some others will chime in.

 

You can easily run 245s on each corner of your G35 without issues since your rims are all 8" wide! You'll also discover that the ride will be more stable and track better at freeway speed...Gary

 

Thanks everyone for the input. So all the rims are the same size? Why in the world did they come staggered then?

 

Because race car.

LOL, just kidding, probably looked sportier with bigger tires in the back.

 

Well, to me the 225/50/18 did not look sporty at all because of the bigger sidewall. And they really bulged out, looked soft with some tires like Micheline pilot sport.

 

Nope, Gary is mistaken about that; the wheels are not all 8" wide. The staggered 18" sport setup runs 7.5" in the front and 8.5" in the back. You can run the 235/50-18 size in the front, but you loose a bit of tolerance in your traction control since the front to rear diameter is then 2.1% off, versus .7% normally. If you're going to run 235's in the front, a better combo is to put 255's on the back, then your FR-RR diameter difference is .8%, or virtually identical to stock. It is not imperative to match the stock setup, but it will avoid your traction control kicking in prematurely on an on-ramp.

As for as running 245's all around, yes you can technically do it, but that 245 width on the 7.5" wheels in the front will be a rather pinched. If you're not looking for any serious performance, then it's a non-event, but if you want a crisp turn-in response from your "sport" sedan, you're better off either NOT running a wider tire on those narrower 7.5" front wheels, or getting a spare set of 8.5" rear sport wheels and running them on the front along with the wider 245's.

.02

 

EDIT, wrong info.

Sorry, saw the "2G35" in your username and thought you had a 2 door.

 

Okay may be I should have been specific about my car here. Since this is a sub forum for the 2007-08 Sedan, I assumed the topics here would be for those models.

My car is a 2007 Sedan Journey with the performance tire and wheel package.

I am currently running 235/45/18 in the front and 245/45/18 in the back. vqsmile, most likely right about this. My traction has been very sensitive since I put the 235s on.

 

I also assumed since this was the V36 section , and because I looked back at some of your posts, that we were talking about a second gen sedan, so yes I am correct and you should ignore those other posts.

 

Sorry, but Gary is just as human as I am. EVEN he can be wrong . You guys just need to check where you're posting.

 

Sure I could have been wrong or maybe didn't realize I was posting in the granny four door sedan section. My OE couple wheels were 8" wide knowing for sure 245s would work on both ends.
Gary

 

Wow, I hope it helped you feel better to get that out Gary.

 

I did, I did...

 

Haha, not sure why everyone and their gramnda is coming here to post about the coupes

I am 99% certain, you are dead wrong on this one. Appreciate the help though young buck