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Wheel width/offset/size and tire fitment Q&A thread

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Old 02-25-11, 05:51 AM   #31
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Originally Posted by AKS14 View Post
What sort of camber do you run front and rear? Just curious as your current wheels/tires are pretty close to what I'll be running.
very minimal camber at my height, but if you lower it more you'll probably see more camber all around and some toe in on the rears
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Originally Posted by speedaddic View Post
have you considered Vossen wheels? The look and feel of ultimate luxury with the pricing of Walmart?


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Old 02-25-11, 05:52 AM   #32
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Originally Posted by revel View Post
are those SSR Koenigs? didnt realize they came in a 19". such sexy wheels. so classic and timeless.
yep i have 4 sets

i really shouldn't be rolling them in the winter...but oh well
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have you considered Vossen wheels? The look and feel of ultimate luxury with the pricing of Walmart?


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Old 02-25-11, 07:08 AM   #33
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Originally Posted by whazzzzuup View Post
It seems that every other question asked on this sub-forum is about wheel/tire fitment. If you guys have any questions, just post them in this thread. There are a lot of knowledgeable members that can answer these types of questions. That should help a lot with the clutter.
There is a thread that should/might be a sticky covering the subject:

http://www.clublexus.com/forums/gs-s...-05-sc430.html

Wheel Fitment Guide 2GS/IS-01-05/SC430

Wheels and Tires Fitment Guide

98-05 GS300/400/430
01-05 IS300
02+ SC430

Author: rominl

Creation Date: 3/2/2004

Modify Date: 10/26/2005 (SC430 information)

Quote:
Originally Posted by raceforgt View Post
I suppose I'll be the first to post something here. I've asked about this in another forum and was rudely told to search and not ask repeated questions about something that's been discussed elsewhere. I searched and found nothing to answer my exact questions.............
I don't think people were trying to be rude, it's just frustration from additional post going up on subjects that have been covered before. I'll post the GS section of the fitment guide (which needs to be updated):

GS wheels fitment

The stock GS 17" wheels, as far as I know, are 17x8 with 235/45/17. I have owned two sets of aftermarket wheels for the car, 19" VolkRacing AV3 19x8.5 +38 front and 19x9.5 +38 rear, and now I have the 20" HRE 540R 20x8.5 +32 front and 20x10 +43 rear. I would classify my 19" setup as a conservative setup as it doesn't flush totally with the fender but have zero rubbing issue, whereas with the HRE, the setup is very aggressive and is flush perfect with the fender, but has slightly rubbing which was fixed relatively easy.

The following are the wheel sizes that I would suggest for the GS (if you don't want to have a staggered setup, just put whatever for the front in the back). When I say the setup is conservative, it means you don't have to do any fender modification. When I say aggressive, that means you probably have to do the rolling or shaving. And in the case of professional, then some major suspension changes would have to be made in order to fit the wheel, and should be left to professionals hence I won't go over how here.

18" Difficulty
18x8 +32 18x9 +32 conservative
18x8.5 +38 18x9.5 +38 conservative
18x8.5 +38 18x10 +44 conservative
18x8.5 +32 18x10 +42 aggressive
18x9 +38 18x10 +42 aggressive
18x9 +35 18x10 +35 professional

19" Difficulty
19x8 +32 19x9 +32 conservative
19x8.5 +38 19x9.5 +38 conservative
19x8.5 +38 19x10 +44 conservative
19x8.5 +32 19x10 +42 aggressive
19x9 +38 19x10 +42 aggressive
19x9 +35 19x10 +35 professional

20" Difficulty
20x8.5 +38 20x9.5 +38 conservative
20x8.5 +38 20x10 +44 conservative
20x8.5 +32 20x10 +42 aggressive
20x9 +38 20x10 +42 aggressive
20x9 +35 20x10 +35 professional

** on 20" wheels for the GS, keep in mind that the wheels are out of spec so the overall diameter is off by about 6%. Your speedometer would be off, meaning that when the speedometer says 80mph, you are actually going at around 85mph already. Plus, because of the 1" larger diameter overall compared to 18" or 19" (with tires), you have to be careful with your lowering. From my experience, if you lower your car to 2 fingers, provided that you have the correct offset, you shouldn't rub (or very slightly) the top of the wheel well. If you go 1 finger gap or less, when going over uneven road or dips, you will most likely rub the top part of the wheel well. Over time you will see part of the rubber wheel well flap got rubbed away. Moreover, with 20", you will rub when you put your steering wheel at full lock (either left or right) and mostly when backing up. This is due to the bigger diameter and when you turn, you rub the front and back of the wheel well (this is one reason why 20" are the biggest rims you can put on the GS with reasonable widths).

When it comes to tires for the GS, the following setup are preferred:


Wheel Size Tires Within Spec?
18x8 235/40/18 245/40/18 yes
18x8.5 245/40/18 yes
18x9 245/40/18 255/40/18 yes
18x9.5 275/35/18 yes
18x10 275/35/18 285/35/18 yes
19x8 235/35/19 245/35/19 yes
19x8.5 245/35/19 yes
19x9 245/35/19 255/35/19 yes
19x9.5 275/35/19 yes
19x810 275/30/19 285/30/19 yes
19x8 235/40/19 245/40/19 no (fat setup)
19x8.5 245/40/19 no (fat setup)
19x9 245/40/19 255/40/19 no (fat setup)
19x9.5 275/35/19 no (fat setup)
19x10 275/35/19 285/35/19 no (fat setup)
20x8.5 245/35/20 no
20x9 245/35/20 255/35/20 no
20x9.5 275/30/20 no
20x10 275/30/20 285/30/20 no

Keep in mind different brands of tires, even with the same profile, will be different too. So for very marginal setup (read: aggressive), the tires might provide the 1 or 2mm that makes all the difference. Tires like the Bridgestone SO3 and Dunlop P9000 are very rounded and "meaty". The rounded corners will help to avoid rubbing. On the other hand, from my experience, Nitto, Pirelli, Yokohama, etc... tires are very "square" so they might enhance the rubbing factor.
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Old 02-25-11, 08:06 AM   #34
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that tire info is great !!! ^^^^^
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Old 02-25-11, 09:39 AM   #35
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I'm sorry, but that chart is totally out to lunch and completely wrong..

You don't have to be a professional to fit 19x9 +35 19x10 +35 on a 2GS..lol
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Originally Posted by speedaddic View Post
have you considered Vossen wheels? The look and feel of ultimate luxury with the pricing of Walmart?


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Old 02-25-11, 10:14 AM   #36
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Originally Posted by Bippu147 View Post
I'm sorry, but that chart is totally out to lunch and completely wrong..

You don't have to be a professional to fit 19x9 +35 19x10 +35 on a 2GS..lol
Maybe you'd like to volunteer to update the chart?
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Old 02-25-11, 10:38 AM   #37
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Okay.. need some help.. for the experts:
Any info or opinions would be great..

"Front 20 x 8.5 2.5" lip
Rear 20 x 10 3" lip
Offsets - unknown.. but doesn't look too agressive.
Tire Sizes:
Fronts 245-30-20
Rears 295-25-20 "

Are those tires sizes a bit big? Should I go with a 225-30-20 and 245-30-20 ? or something?
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Old 02-25-11, 11:00 AM   #38
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19x9.5 +22, 235/35/19
19x10.5 +22, 245/35/19

All four fenders have to be rolled. My drop is extremely low, haven't got alignment yet. Seems to fit perfectly being REALLY LOW and no alignment.
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Old 02-25-11, 11:40 AM   #39
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Quote:
Originally Posted by ZippyGuy View Post
There is a thread that should/might be a sticky covering the subject:

http://www.clublexus.com/forums/gs-s...-05-sc430.html

Wheel Fitment Guide 2GS/IS-01-05/SC430

Wheels and Tires Fitment Guide

98-05 GS300/400/430
01-05 IS300
02+ SC430

Author: rominl





Creation Date: 3/2/2004

Modify Date: 10/26/2005 (SC430 information)



I don't think people were trying to be rude, it's just frustration from additional post going up on subjects that have been covered before. I'll post the GS section of the fitment guide (which needs to be updated):

GS wheels fitment

The stock GS 17" wheels, as far as I know, are 17x8 with 235/45/17. I have owned two sets of aftermarket wheels for the car, 19" VolkRacing AV3 19x8.5 +38 front and 19x9.5 +38 rear, and now I have the 20" HRE 540R 20x8.5 +32 front and 20x10 +43 rear. I would classify my 19" setup as a conservative setup as it doesn't flush totally with the fender but have zero rubbing issue, whereas with the HRE, the setup is very aggressive and is flush perfect with the fender, but has slightly rubbing which was fixed relatively easy.

The following are the wheel sizes that I would suggest for the GS (if you don't want to have a staggered setup, just put whatever for the front in the back). When I say the setup is conservative, it means you don't have to do any fender modification. When I say aggressive, that means you probably have to do the rolling or shaving. And in the case of professional, then some major suspension changes would have to be made in order to fit the wheel, and should be left to professionals hence I won't go over how here.

18" Difficulty
18x8 +32 18x9 +32 conservative
18x8.5 +38 18x9.5 +38 conservative
18x8.5 +38 18x10 +44 conservative
18x8.5 +32 18x10 +42 aggressive
18x9 +38 18x10 +42 aggressive
18x9 +35 18x10 +35 professional

19" Difficulty
19x8 +32 19x9 +32 conservative
19x8.5 +38 19x9.5 +38 conservative
19x8.5 +38 19x10 +44 conservative
19x8.5 +32 19x10 +42 aggressive
19x9 +38 19x10 +42 aggressive
19x9 +35 19x10 +35 professional

20" Difficulty
20x8.5 +38 20x9.5 +38 conservative
20x8.5 +38 20x10 +44 conservative
20x8.5 +32 20x10 +42 aggressive
20x9 +38 20x10 +42 aggressive
20x9 +35 20x10 +35 professional

** on 20" wheels for the GS, keep in mind that the wheels are out of spec so the overall diameter is off by about 6%. Your speedometer would be off, meaning that when the speedometer says 80mph, you are actually going at around 85mph already. Plus, because of the 1" larger diameter overall compared to 18" or 19" (with tires), you have to be careful with your lowering. From my experience, if you lower your car to 2 fingers, provided that you have the correct offset, you shouldn't rub (or very slightly) the top of the wheel well. If you go 1 finger gap or less, when going over uneven road or dips, you will most likely rub the top part of the wheel well. Over time you will see part of the rubber wheel well flap got rubbed away. Moreover, with 20", you will rub when you put your steering wheel at full lock (either left or right) and mostly when backing up. This is due to the bigger diameter and when you turn, you rub the front and back of the wheel well (this is one reason why 20" are the biggest rims you can put on the GS with reasonable widths).

When it comes to tires for the GS, the following setup are preferred:


Wheel Size Tires Within Spec?
18x8 235/40/18 245/40/18 yes
18x8.5 245/40/18 yes
18x9 245/40/18 255/40/18 yes
18x9.5 275/35/18 yes
18x10 275/35/18 285/35/18 yes
19x8 235/35/19 245/35/19 yes
19x8.5 245/35/19 yes
19x9 245/35/19 255/35/19 yes
19x9.5 275/35/19 yes
19x810 275/30/19 285/30/19 yes
19x8 235/40/19 245/40/19 no (fat setup)
19x8.5 245/40/19 no (fat setup)
19x9 245/40/19 255/40/19 no (fat setup)
19x9.5 275/35/19 no (fat setup)
19x10 275/35/19 285/35/19 no (fat setup)
20x8.5 245/35/20 no
20x9 245/35/20 255/35/20 no
20x9.5 275/30/20 no
20x10 275/30/20 285/30/20 no

Keep in mind different brands of tires, even with the same profile, will be different too. So for very marginal setup (read: aggressive), the tires might provide the 1 or 2mm that makes all the difference. Tires like the Bridgestone SO3 and Dunlop P9000 are very rounded and "meaty". The rounded corners will help to avoid rubbing. On the other hand, from my experience, Nitto, Pirelli, Yokohama, etc... tires are very "square" so they might enhance the rubbing factor.
oh man we need to update this
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Old 02-25-11, 12:31 PM   #40
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Originally Posted by Bippu147 View Post
I'm sorry, but that chart is totally out to lunch and completely wrong..

You don't have to be a professional to fit 19x9 +35 19x10 +35 on a 2GS..lol
LOL no doubt. That chart is ridiculous (no offence to poster).


I'll try to chime in on this. Here is what I've learned

In my opinion, anything that doesn't require fender modifications is conservative. On some sizes you might beable to go with a higher offset.......but why? LOL. The following fitments should fit without fender mods. Any offsets lower than these may require fender mods and possible camber adjustments and stretched tires.

Fronts
8.0" +20 ~ +50
8.5" +25 ~ +45
9.0" +30 ~ +40
9.5" +30 and lower (will require fender mods)

Rears
8.0" +20 ~ +50
8.5" +25 ~ +45
9.0" +30 ~ +40
9.5" +35 ~ +50
10.0" +40 ~ +50
10.5" +45 ~ +50
11" +45 and lower (will require fender mods)

If anyone has fit any other offsets feel free to correct me. I don't care enough to argue LOL. no matter how many threads and posts there are about wheel and tire fitment it will never stop LOL. For all other fitment questions go to...

http://www.1010tires.com/WheelOffsetCalculator.asp

and figure it out your damn self

As for tire sizing, as long as your overall diameter is between 25.25 ~ 26.75 you should be fine. The lower you are the shorter you should go to avoid rubbing. and the more flush your wheel is you will need to stretch the tires. For those of you who dont know how to figure out the overall diameter go to this link...

http://www.1010tires.com/TireSizeCalculator.asp
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Old 02-25-11, 02:05 PM   #41
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That website is great for calcuations. But it doesn't have an illustration like mines that I posted up early. A picture is worth 1000 words.
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Old 02-27-11, 05:18 PM   #42
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Thoughts on tires/fitment for?:

245/35/19 for the fronts...what about the rears? Would I need to do a shave?

http://www.vrwheels.com/ssr-vienna-m...ck-p-3449.html

19x8.5+30
19x10+38

Click the image to open in full size.

Last edited by Hypebeast; 02-27-11 at 05:24 PM..
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Old 02-28-11, 07:45 AM   #43
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too mild.

you won't need to roll fenders with that setup...depending on the tire size you go with. you should be able to run a 255 on the back no problem
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have you considered Vossen wheels? The look and feel of ultimate luxury with the pricing of Walmart?


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Old 02-28-11, 09:34 AM   #44
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thanks for the info! I'm not looking for something crazy...this is my daily and only car, and i live in the land of potholes. Just some wheels & a drop on coilovers.
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Old 03-07-11, 05:06 AM   #45
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Click the image to open in full size.

Just got these. Will i need spacers? And would ya be able to tell me whats the best size tires to get?

1. 19X8.5 Front offset 45
2. 19X9.5 Rear offset 40
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