hi Guys,

I guess this has been ask many times. But I still wondering is it doable???

My ride is 2009 G37X Sedan. I will not lower the car or something like that. Cause my place has lot of snow. I am thinking to get a 22X8.5 rim with 235/30ZR22 tyre.

The stock tyre is 225/55R18 which has 682.2mm diameter. The new rim is 22x8.5 and tyre will be 235/30ZR22 with 699.8mm diameter. The different is 17.6mm or 1.76cm.

So is that 17.6mm already too much? I know some some companies market their 22" rim with G37. But not too many company do that. Also, since my car is all wheel drive, I want to both front and rear the same size. So is it SAFELY doable? My driving is just normal everyday road. And I might add a rim spacer later.

thanks a lots

 

Be sure to grab your flamesuit. Most people on this forum would never bless 22inch wheels on this platform.

The general consensus is that keeping the overall diameter of your new wheel and tire within 3% of the original setup is "safe".

Also, I believe a 2009 G37x sedan came with 225/55/17 and NOT 18. I could be wrong...

Based on the 225/55/17 OE size, there would be a variance of 3.02%. Not recommended.

http://www.1010tires.com/Tools/Tire-...5R17/235-30R22

 

Sprix is correct, your original tire size was 225/55/17 or the optional 225/50/18, so unless you listed the 18s incorrectly you're already running tires that are almost an inch taller than stock (about 3.2% taller).
If you use the proper base tire sizes than a 245/25/22 would give you a net diameter that would be equal to the 225/50/18 w/ only a diameter variance of -0.04%. You realize on those rubber band tires your car will drive like a tractor, you'll feel every pebble in the road, tires will be outrageous in price (unless you go w/ those cheap DUBS type tires that are really only for show), and those huge rims on stock suspension will look a bit strange. But it's your car, and only you can decide what's right for you. G/L and if you need more wheel advice just let us know.
Brad