EyeKutr

iTrader: (5)

Does anyone know for certain if 18 x 8.5s with offset of 50 (meaning rear rims) fit the front of an IS without problems ???? I ask in considering 18 x8.5s all around fitted with 245 40 18s.... has anyone done a rotation to see if the fit works ????

350PsDMeuP

iTrader: (1)

im thinking if the is will fit 20x9 in the front it surely can hold the 18x8.5

Alex350

Sizewise they will fit, however, since the rear wheels have a different offset, they might not clear the brakes. I'm not 100% sure of this, but I think that's what will happen.

EyeKutr

iTrader: (5)

The offset is +50 vs +45, i think that should increase the caliper clearance no ????

al503

They will not fit. When I was researching offsets for my wheels, I took off the front and put the rear (with the 255/40/18) wheel up there. The tire was rubbing on the spindle.

You would have to go with a very skinny tire (probably 215's or skinnier) to have a chance.

I have 235/40's on an 8.5" wheel that has a +40 and I can barely squeeze my pointer finger between the tire and the spindle.

al503

You're going the wrong way. The higher the number, the further the wheel is sunk into the well.

socalJD

Like al503 said, this will not work on the IS350. Not sure about a IS250 or your GS300, since the calipers & discs are smaller . . .

kickin8

iTrader: (1)

if you just swap the back to the front...it will rub...

carlos

iTrader: (1)

The rim will work, but the tire is too wide.