BennyJ

iTrader: (5)

I have a gs400 and I'm lowered on tein cs as far down as they can go. I'm looking at some wheels that are 19x8.5 +30 / 19x9.5 +25. I'm not sure what tire size to go with. I need as much meat as possible because my route to work is riddled with pot holes, but I don't want to worry about rubbing either. Any input would be helpful, thanks in advance!

Sonic_RC

iTrader: (15)

If you want as much "meat" as possible. I would run 245/35R19 Front and 275/30R19 rear. However since you are running a +25 offset rear you may been to roll/shave the rear fenders.

epic1si

on my gs i run 255/35/19 and 285/30/19 i couldn't find any 295/30/19 at the time that i could afford but i'm not dumped either.

if your dumped maybe a 275/35/19 for a little extra 'meat' for the rear tires...

lexusben

iTrader: (3)

I used to run 9.5 (+38) with 275's in the back and they rubbed against the fender (only the right side for some reason). Also, I have 8.5 (+38) in the front and it is pretty flush.

Sonic_RC

iTrader: (15)

275/35R19 is pretty damn tall for a GS it would look a little ridiculous. The overall diameter is about 1" taller than factory specs. If your car is set to the lowest setting the last thing you want to do is go with a tire with a larger overall diameter

OEM Sizes
215/60R16 = 26.16 OD
225/55R16 = 25.75 OD
235/45R17 = 25.33 OD

Recommended Sizes
245/35R19 = 25.75 OD
275/30R19 = 25.50 OD

Optional Sizes
255/35R19 = 26.03 OD
285/30R19 = 25.75 OD

275/35R19 = 26.58 OD

This setup in the photo is 245/35 and 275/30


If you had 19x9 and 19x10 I would probably recommend 255/35 and 285/30. But not in your case.

BennyJ

iTrader: (5)

sounds like the 245/35 and 275/30 is the way to go

ZippyGuy

iTrader: (9)

First off, you have to keep in mind that your "range" of tire size is overall diameter - 25.32 in to 26.71 in (ish) for a GS. Regardless of what anyone tells you specific to a 300/400/430, you can use these limits in your tire down select, you just have to be aware of how wide your tires are.

I have 19 inch wheels and wanted to keep some level of comfort and protection so lucky for you, I've done my homework and I'll share

THE ideal sizing for your wheels giving you the most protection and comfort is:
19X8.5 - 235/40-19
19X9.5 - 265/35-19

Tires are limited in this size, you'll only have the Conti Contact 3 or Yokohama Advan Sport to select (I personally don't consider the Bridgestone R050). This would be considered a "fat set-up" and shouldn't rub. If you want to go with a slight stretch with as much comfort as possible I think a good choice is:

19x8.5 - 225/40-19
19X9.5 - 255/35-19

IMHO, I think this is perfect! A little style, great protection, and great tire options. I borrowed a picture from GSing430 to show an example of this set-up.

Next up:

19X8.5 - 245/35-19
19X9.5 - 275/30-19

This will rub but will keep you almost 100% in spec.

Then

19X8.5 - 235/35-19 (or smaller)
19X9.8 - 265/30-19 (or smaller)

This really is a law of diminishing returns. Yes they'll look great but if you're after protection and style, IMO, this isn't the direction to go.

Hope that helps.

Sonic_RC

iTrader: (15)

^^ No argument here. I was just looking for the widest setup within spec. and shorter based on his car being set at the lowest setting. 225/40 and 255/35 should be my next choice if you wanted a little more narrow tire.

GS4_Fiend

iTrader: (22)

19x9+34
19x10+36

Rears are cutted. Fronts no mods.
No wheel gap. Whats good for this?

BennyJ

iTrader: (5)

great info guys, really appreciate the input!

socaristo

good info.. pls post more pics of your ride with nice offset

ZippyGuy

iTrader: (9)

100% in spec for the performance wheel option (25.7 inch) is:

245/35-19
285/30-19

entryspeed

iTrader: (3)

at 295/30/19 with a 19x10 +30 rimI had to cut inner lip off rears but it doesnt rub and I didnt do any pull. I also sit pretty low and deal with a bumpy road in a slow manner everyday but its worth the look. Im running 235/35/19 of front on a 19x8.5 +34 and its close to flush other than the camber really. I have pics posted on forum just look through my posts. heres the rear.

j stuff

iTrader: (5)

your tire is pretty much too big in the rear

entryspeed

iTrader: (3)

^^^^ yea no! im not worried about diameter/speedo issues and i happen to love how 295's look. but best of luck bennyj