blnewt

iTrader: (13)

The ONLY 20" combos I'd recommend are
235/35/20~275/30/20
245/35/20~285/30/20
255/35/20~295/30/20
Depending on if you have a coupe or sedan and what the wheel offsets are will determine which (if any) combo is the best fit.

Here's a good calculator anytime you try different setups
https://www.myg37.com/forums/tire_rim_calculator.php

sean0128

What about for the 19" g37 sport rims, i used the calculator and it should be good with -0.52% difference but just verifying if anyone else used this setup on the X coupe with no issues.
245/40/19 F and 275/35/19 R

Snipres

Currently running this setup on Swift springs....Perfect fitment no rubbing in the back
F-20x8.5 +40............245/35/20
R-20x10 +40..............285/30/20

blnewt

iTrader: (13)

Those will be OK
Best combo for 19s and those rims would be 235/45/19 & 265/40/19, they'll be a bit taller but the variance is almost zero at 0.07%

zero260

I'm not an advanced member by any means, so dunno how much my opinion counts. However, I was recently in the exact same position and decided not to stagger. To me the advantage was only one: aesthetic appeal. However, as far as cons go, there is lots to consider. Basically AWDs are meant to have 4 of the same tires, as your engine powers them all the same. Having your front and back different goes against the basic ideology of how an AWD car is designed. So while a staggered formations might be great for a RWD in terms of performance, it just doesn't make sense for an AWD.

okc

is it ok for me to use the G35 Sport wheels 225/50/18 Fronts and 245/45/18 Rears on my 2007 G35X 225/55/17 All around?

blnewt

iTrader: (13)

That will be OK, but the 225/50/18 front 255/45/18 rear would be a bit better, the rears will be slightly taller so your variance will get closer to zero as your rears wear faster than your fronts.

Neal@tirerack

iTrader: (2)

There's only one tenth an inch difference in diameter so that should be fine. However, check with Infiniti to see if that's within the cars tolerance for diameter difference.

okc

thanks for the advice guys!

DopeWayne

I havent seen this question asked. It's maybe a stupid one but curious. I want to get a set of 19" infiniti ipl rims. Can i just use a set of front fitment rims for the rear or is the fitnent off? I have 2013 g37x sedan.

blnewt

iTrader: (13)

You can do that without problems, and 245/40/19s are the size tires you should run.

Heymanisth

I have a 2014 Q60 AWD which is running 225 45 r19 in the front and 265 40 r19 on the rear. The wideness of the tires doesn't matter, the rolling diameter of the tires is what the AWD system monitors.
With this set up the AWD warning light stayed off at lower speeds but then came on at speeds greater than 100 kph. After doing this a dozen times or so over a week the AWD light stopped coming on and never came back on and everything seems to be working perfectly.
It would seem the AWD computer over time accepted and adjusted itself to the different front/rear rolling diameters.
It make me wonder if I could have got away with having even taller tires in the back and how far you could push the difference in tire sized before the AWD system gives up, turns on the AWD trouble light and disables the AWD system and refuse to accept any more differences in tire size.

blnewt

iTrader: (13)

^^^^It's also possible your rear tires have worn faster which would bring the diameter variance closer to 1%. I wouldn't go any higher w/ that diameter variance, wouldn't be worth the risk IMO.

canadian bacon

Blnewt...You are indeed very smart about offset on awd systems...I have been doing lots and lots of research on 19s and 20s for my 2013 coupe xs.You can run offsets without any problems as long as your rolling diameters is within 2% from factory on my 19s there is a difference of .73% rolling diameter.And this is the stock set up.
Ps blnewt.Thanks for all your help with offsets and tire sizes.went to a few tuner shops gave them the specs for tires/wheels..all said "looks good,no issues".the only down side is you can't rotate tires...that's it.good luck with your wheels and cheer up.you can run staggered wheels��