Phresh2010

iTrader: (3)

i have an AWD is250 but i wanted to put the 350 rims on my car, to keep rolling diameter as close as possible i want to run the same tire size all around, one thing i am worried about is that the tire will be too stretched or is it ok to run the rears with 225/40/18s? any input would be appreciated

sktn77a

iTrader: (2)

The stock rear 18" wheel is 1/2 inch wider than the front wheel so a 225 tire will be a stretch (literally).

ScKcBc

iTrader: (2)

Just do 245/40/18's all around , you'll have less gap. Or I'd run something like a 255/40/18 in the rear and a 225/45/18 in the front. Check to see which staggered width setup has the same rolling diameters.

ltzSupra

In for info as I want to do this also.

speedywa

is it possible to run 245/40R18 all around? Curious

laobo979

iTrader: (5)

I'm running 225 45 18 in the rear of my 350 it a little stretch if anythang to be honest.

ScKcBc

iTrader: (2)

Just do 245/40/18's all around , you'll have less gap. Or I'd run something like a 255/40/18 in the rear and a 225/45/18 in the front. Check to see which staggered width setup has the same rolling diameters.

Jay hall

i have OEM '09 GS 18" rims and im running on 225/40/18 front and 255/40/18.. seems ok to me.. coz this is the size suggested for F-sport 18' rims. :-)

KI_GSE21

iTrader: (5)

OEM IS350 setup is 225/40/18 front and 255/40/18 in the rear. Front wheel is 18x8 and rear wheel is 18x8.5.

To check if you are selling the correct tire size, you should refer to the tire spec on the manufacturer's website and it will show the range of wheel width suitable to be mounted on.

gompka

iTrader: (6)

i am running 225/50/18 all around on my is350 with oem wheels. The fronts rub just a tad, but thats cause they are so tall. You should be fine with 225/40/18, they will be a bit stretched in the rear but not bad at all.

ScKcBc

iTrader: (2)

the OD has to be the same, or very close, thats it!!

g_abac

I run 235/40/18 with F-Sport Wheel 18"x8" all around with my IS250 RWD

jbjones85

iTrader: (20)

This is 100% correct, the size itself doesn't really matter as long as the overall outside diameter is the same, or very very close. What about just buying 4 of either the fronts or rears so you don't have to worry about it and you can rotate all the way around?