WHEEL FITMENT GUIDE: Will these fit? What offset do I need? - Page 2 - Lexus IS Forum
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post #16 of 1756 (permalink) Old 07-01-2010, 08:49 AM
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Quote:
Originally Posted by iculkn View Post
With a 1.5 drop will these fit with no problem?

Wheels F - 19x8.5 38 offset R- 19X9.5 40 offset
Tires: F-225 R-245

or will 19x8.5 38 offset work better all around?
Yup the staggered setup will work perfectly.

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post #17 of 1756 (permalink) Old 07-01-2010, 03:36 PM
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Offset Guru's... Plz help a Wheel noob!

ok b4 i start this... yes i searched the stickies.. but i just dont get this offset thing...

i got a set of rims 18" X 8" with 35 offset front and back... i want a Flush setup with a bit of aggressiveness.... im not lowered.. But i plan on dropping the car within the next 30 days... please help me out on what tire size i should use in the front and back...( + spacers if needed).. thanks in advance!

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post #18 of 1756 (permalink) Old 07-01-2010, 04:25 PM
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Quote:
Originally Posted by LEXziLLa View Post
ok b4 i start this... yes i searched the stickies.. but i just dont get this offset thing...

i got a set of rims 18" X 8" with 35 offset front and back... i want a Flush setup with a bit of aggressiveness.... im not lowered.. But i plan on dropping the car within the next 30 days... please help me out on what tire size i should use in the front and back...( + spacers if needed).. thanks in advance!
I have an aggressive setup for you (but it will only look good lowered a lot and with coilovers).

Front: 18x8+35 ->
-Run a 20mm spacer (bolt-on type)
-205/40r18 tires (try to find and use narrower tires for gained clearance and more stretch. IE Nankang NS-II)
-Roll fenders flat, mold and push liners up
-Run -2* of camber

Rear: 18x8+35 ->
-Run a 30mm-35mm spacer (bolt-on type)
-205/40r18 (run narrow)
-Roll fenders flat, flare 10mm, trim bumper tab
-Run -3* of camber

You can still rotate tires. Boom. Done.

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post #19 of 1756 (permalink) Old 07-01-2010, 07:10 PM
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Blitz Technospeed Z1

19x8.5 +41 225/35/19 Advan Neova AD08
Fender = 66.95 <65 not OK
suspension = 148.95 <155 OK

19x9.5 +45 ? Advan Neova AD08
Fender = 75.65 >68 not OK
suspension = 165.65 <190 OK

I'm using the 225 from my previous wheels so the front tire is set. I know that 225 on an 8.5 is barely a stretch if any at all.

What size for the rear should I use to match the appearance of the front?
245/35/19, nice because I THINK it would match how the front looks

or 255/30/19, nice because its wider yet the OD is closer to that of 225, but not sure if it will fit with the amount of fender work i'm limited to doing.



Fenders will be rolled but can't be pulled due to the cosmetic only Rspec fender flares.

Lowered on Tein Comfort Sport Coilovers.

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Last edited by redlex15; 07-02-2010 at 06:41 AM.
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post #20 of 1756 (permalink) Old 07-01-2010, 07:34 PM
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They'll fit just fine. Roll your fenders flat, and run 255's to keep the OD the same. Otherwise it might look goofy with a thinner tire on the back.

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post #21 of 1756 (permalink) Old 07-06-2010, 04:43 PM
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Offset Help

Sorry if this is a repeat thread, iv searched but still cant figure it out! i previously posted a thread thinking my camber was bad because my tires were being eaten up on the inside within a month or two... well i think its because the offset is off on the front right rim ( had to order a new one cause the old one cracked completely in half! ) and my struts are a POS so i just bought some sprigs and struts....... we are in the market for some gold gloss ti5 rims 18x8.5 front and 18x9.5 rear... rear is already rolled... i have NO clue about this offset thing.. and i need help.. how do i figure it all out or does it matter..? thanks for reading!

Jaime

-// 2002 IS300 and thats it!
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post #22 of 1756 (permalink) Old 07-08-2010, 11:06 AM
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Can someone see if this set up will work without modding fenders.

17x9 48 all around
I also have the option of offset 63 if needed.

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post #23 of 1756 (permalink) Old 07-08-2010, 11:37 AM
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Quote:
Originally Posted by VLXIS300 View Post
Can someone see if this set up will work without modding fenders.

17x9 48 all around
I also have the option of offset 63 if needed.
You won't be able to fit a 9 up front without modding the fenders.

+48 would work, but it hits the suspension. By the time you add a spacer to make it clear it's past the fender and you'll have to roll them.
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post #24 of 1756 (permalink) Old 07-08-2010, 12:46 PM
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on a 17x9 inch, what offset would i need to clear the suspension.

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post #25 of 1756 (permalink) Old 07-08-2010, 01:26 PM
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Quote:
Originally Posted by VLXIS300 View Post
on a 17x9 inch, what offset would i need to clear the suspension.
Use the mathematical equation provided to you in the very first post of this thread.

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post #26 of 1756 (permalink) Old 07-08-2010, 08:12 PM
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Quote:
Originally Posted by VLXIS300 View Post
on a 17x9 inch, what offset would i need to clear the suspension.
9 * 25.4 / 2 + 37 = 151.3

That should give you 3.7mm of clearance unless running a 17 makes a difference. I'm not sure on that end.

9 * 25.4 / 2 - 37 = 77.3

Fender limit is 65 so you're 12.7mm over the limit.

Quote:
Originally Posted by twestman View Post
Use the mathematical equation provided to you in the very first post of this thread.
Too hard
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post #27 of 1756 (permalink) Old 07-12-2010, 09:59 AM
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aggresive fitment

Hey i just purchased some new volk 18-8 wheels all around.. the offset is 48+ and the tire sizes are 225/40/18 front and 245/40/18 rear. I plan on lowering from stock about an inch. im running the same size in front of my car now on stock ride height and i have no problems.. what would change? what do i have to do for absolute no rubbing from this small fitment increase???
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post #28 of 1756 (permalink) Old 07-12-2010, 11:28 AM
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^^ Nothing. You'll be good.

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post #29 of 1756 (permalink) Old 07-13-2010, 11:06 PM
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Need some help with this rear wheel/tire setup, 18x9.5 +38 w/ 255/35. Can the rear be pulled enough to fit the offset and tire size w/out running much if any negative camber. The car is lowered 1.5 on springs.
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post #30 of 1756 (permalink) Old 07-14-2010, 12:00 AM
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Quote:
Originally Posted by Red_Rocket View Post
Need some help with this rear wheel/tire setup, 18x9.5 +38 w/ 255/35. Can the rear be pulled enough to fit the offset and tire size w/out running much if any negative camber. The car is lowered 1.5 on springs.
Yes you can pull the rear about 15mm and it will fit just fine.

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