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Old 11-09-2010, 10:10 AM   #1
2011boostdwrx
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Default 2011 WRX 18" Wheel Fitment, HELP have to order today!

I have a 2011 WRX hatch and want to put 18" wheels andtires. I want the XXR 522 in 18", but i do not know the offset nor the tire size I need for the 18" wheel. I am also dropping the car maximum of 1". I want the car to sit similar to the my MAzda3 pictured, not too agressive but nice fender fill.

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Old 11-09-2010, 11:06 AM   #2
Mach V Matt
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So, you're buying new wheels AND tires? Or, are you just buying tires? We need to know the width of the wheels you have in order to point you in the right tire size direction. XXR's don't have the greatest rep....
Take a few minutes and read THIS


Matt
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Old 11-09-2010, 09:01 PM   #3
2011boostdwrx
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I called this afternoon they told me 18: 9.5 width, 38mm offset with 255/40/18 tires? Is this correct for a 2011 to make it sit close to my mazda?
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Old 11-10-2010, 09:55 AM   #4
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That size will likely require fender rolling. If you want to be safe, since we have no idea which model tire you are buying, 245/40r18 is an easier fit. The wheels will be quite flush with those specs.
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Old 11-10-2010, 11:38 AM   #5
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it wont be "quite flush". it'll be a pretty easy fit, though I'm unsure on the newer chassis, rolling might be required depending on tire size. 235/40/18 is a popular size, or 255/35/18. depending on how comfortable you are with rolling fenders.
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Old 11-10-2010, 12:09 PM   #6
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Quote:
Originally Posted by 2011boostdwrx View Post
38mm offset
^ this is your issue if you want a 38mm offset than your going to be limited in your tire choices a 255, would probably require fender mods.

however if you wanted to go with a 18x9.5 with say a 45ish mm offset you could probably go with a 255 without fender mods depending on suspension, and camber of course.
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Old 11-10-2010, 12:31 PM   #7
2011boostdwrx
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Default fitment

I do not want to roll at all. So should i go with the 8.5" width rim and if so what tire is recommended for the 8.5". I do not want to roll at all so please help me out here.

I have no idea what i am doing when it comes to wheels and offet. They have a 9.5" & 8.5" wheel.

18x8.5 with 48mm offset
18x9,5 with 38mm offset

I will go with the 8.5" if that is "safer" and what size tire with the 8.5"
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Old 11-10-2010, 01:04 PM   #8
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you could put a 255 on a 8.5 but 245 would fit better in most casses.
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Old 11-10-2010, 01:11 PM   #9
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I would also suggest 245 for a 8.5 wheel.
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Old 11-10-2010, 02:25 PM   #10
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I'm going to put 245 tires on a 8.5" wide wheel on my car, and if I stay in the 44-48mm offset I know I won't have to roll my fenders. Except my car is a 2010, and has the "narrow" body. With your wide fenders, a 255 on a 9 or 9.5" wheel should fit no problem, even with a 38 offset. In fact if you want to be nearly 'flush' you will want to go wider than 8.5.

Give this a read:

http://forums.nasioc.com/forums/showthread.php?t=335263
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Old 11-11-2010, 12:25 AM   #11
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Quote:
Originally Posted by DrDanimalSize View Post
I'm going to put 245 tires on a 8.5" wide wheel on my car, and if I stay in the 44-48mm offset I know I won't have to roll my fenders. Except my car is a 2010, and has the "narrow" body. With your wide fenders, a 255 on a 9 or 9.5" wheel should fit no problem, even with a 38 offset. In fact if you want to be nearly 'flush' you will want to go wider than 8.5.

Give this a read:

http://forums.nasioc.com/forums/showthread.php?t=335263
i kind of doubt that a 9.5in wide rim with 38mm offset with a 255 is going to fit without a rear fender roll. And i think that that link is for GD fitment not GR fitment GRs have more back spacing. could be wrong though.

Last edited by jdmboy; 11-11-2010 at 12:40 AM.
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Old 11-11-2010, 12:03 PM   #12
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what kind of wheels are those on your mazda? they look great!
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Old 11-12-2010, 08:56 AM   #13
2011boostdwrx
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Rota Tarmac 3's on the Mazda.

So guys I guess I am still lost, want to look like the Mazda3 pictures, but do not want to have a ton of problems. XXR is telling me a 9.5" wheel with 38MM offset, and a 255 seems really wide to me, but i do not want to get the 8.5" and it looks weird and not soo agressive.

Man, i wish someone knew about the 011.
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Old 11-12-2010, 10:23 AM   #14
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Quote:
Originally Posted by jdmboy View Post
i kind of doubt that a 9.5in wide rim with 38mm offset with a 255 is going to fit without a rear fender roll. And i think that that link is for GD fitment not GR fitment GRs have more back spacing. could be wrong though.
It's a GR, but it's like an STI since the 2011s have the "widebody" fenders, and therefore a ton more room than the GDs. There are guys running 18x10 with 275 tires and only a roll in the rear. Check out the huge 2008-2010 threads (part 1 and 2) in the members gallery section.

Here's the link: http://forums.nasioc.com/forums/show....php?t=1991638
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Old 11-12-2010, 01:12 PM   #15
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Quote:
Originally Posted by DrDanimalSize View Post
It's a GR, but it's like an STI since the 2011s have the "widebody" fenders,
I was saying that the link you posted was for gd fitment, im aware that the OP's car is a gr.
Quote:
Originally Posted by DrDanimalSize View Post
and therefore a ton more room than the GDs. There are guys running 18x10 with 275 tires and only a roll in the rear. Check out the huge 2008-2010 threads (part 1 and 2) in the members gallery section.

Here's the link: http://forums.nasioc.com/forums/show....php?t=1991638
and yes they do have the wide body but the track is wider on the GR stis than the GD stis, so alot more back space which is why i think something like a 42-45 offset would bo optimal on a 9.5 in wide wheel. sure you may not rub with a 38mm offset and a 255 but what if you want to go with a 265 or 275, you may have issues.
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Old 11-13-2010, 02:31 AM   #16
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I have seen 265s that don't rub (I think it was +42 on 9.5), but a 275 usually needs a roll in the rear regardless of tricky offsets and such. GRs only have a hair more backspacing, so that thread is still useful for "ballparking" fitment.
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Old 11-13-2010, 10:31 AM   #17
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There are plenty of people running much more aggressive setups on GD's, and you have more room to work with ('11 wrx).

18x9.5 +38 w/ 255/35 is a pretty common fitment and can be had with only a roll all around on the GD chassis.
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Old 11-13-2010, 03:20 PM   #18
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Quote:
Originally Posted by sc00by4life View Post
There are plenty of people running much more aggressive setups on GD's, and you have more room to work with ('11 wrx).

18x9.5 +38 w/ 255/35 is a pretty common fitment and can be had with only a roll all around on the GD chassis.
yes i agree with a roll a 18x9.5 +38 w/ 255/35 will fit fine, but IMO a 17x9.5 with a 42mm offset would be a better choice because it would be easier to make a wider tire fit if say you ever wanted to go with a 275...but in the end its 4mm and can be compensated for by alignment and what not.
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