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Old 10-10-2012, 10:50 AM   #1
MrTbrew8
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Default Tire fitment question!!

I have a bone stock 2006 wrx, I was curious if these wheels and tires would fit without any complications

Tires- 235/40zr
Wheels- 18" rotas

Thanks!
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Old 10-10-2012, 01:35 PM   #2
Patrick Olsen
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Clearly, you've done your homework. They should fit fine, regardless of what wheel width or offset you choose. Those pieces of information are not at all important to wheel fitment.
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Old 10-10-2012, 02:37 PM   #3
MD04WRX
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Quote:
Originally Posted by Patrick Olsen View Post
Clearly, you've done your homework. They should fit fine, regardless of what wheel width or offset you choose. Those pieces of information are not at all important to wheel fitment.
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Old 10-10-2012, 02:40 PM   #4
MrTbrew8
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Smartass
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Old 10-10-2012, 02:42 PM   #5
MD04WRX
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235-40-18 tire

18x8.5 plus 48

No rubbing problems.
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Old 10-10-2012, 04:39 PM   #6
sc00by4life
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Quote:
Originally Posted by MrTbrew8 View Post
Smartass
maybe you should thinking about including the actual pertinent information regarding fitment?

wheel diameter means nothing. literally.

tire size fitment depends on a combination of width and offset.

width alone means nothing.

offset alone means nothing.
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Old 10-10-2012, 10:21 PM   #7
MrTbrew8
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It's 9" wide with a 35 offset
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Old 10-10-2012, 10:22 PM   #8
MrTbrew8
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It's 9" wide and 35 offset
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Old 10-10-2012, 10:50 PM   #9
MD04WRX
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Quote:
Originally Posted by MrTbrew8 View Post
It's 9" wide and 35 offset
If you want no complications then you need to stay with the 18x8.5 plus 48. 18x9 plus 35 will require mods.
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Old 10-10-2012, 11:29 PM   #10
MrTbrew8
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What kind of mods do you think? I've never heard about this offset stuff before I've always been into rock crawling an have never had to worry about it
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Old 10-11-2012, 07:51 AM   #11
colin1234567
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Negative camber all around, rolled rear fenders.
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Old 04-09-2014, 03:18 AM   #12
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This is a bit of a rehash of an old thread but I've just started looking at modding my car and couldn't find the answer to my question. I have 06 WRX like the OP but I'm on stock rims and wanted to know if I could fit a 225/50R17 tire under my car without pulling fenders or excessive camber. I'd like to have a bit more side wall since as I understand it this will improve the ride quality (even at the expense of performance). I'm only using it as a DD so I'm not concerned with trying to track the thing until I can afford new rims and suspension. Or if someone has a link on how to measure tire fitment I could just break out a tape measure and figure it out myself. Thanks
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Old 04-09-2014, 09:47 AM   #13
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No do not do that. Your ride quality will absolutely not be improved by adding too tall of tires.
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Old 04-09-2014, 01:33 PM   #14
Patrick Olsen
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Quote:
Originally Posted by LipDown_DiffUp View Post
This is a bit of a rehash of an old thread but I've just started looking at modding my car and couldn't find the answer to my question. I have 06 WRX like the OP but I'm on stock rims and wanted to know if I could fit a 225/50R17 tire under my car without pulling fenders or excessive camber. I'd like to have a bit more side wall since as I understand it this will improve the ride quality (even at the expense of performance and my speedometer reading wrong and my odometer tracking mileage incorrectly).
Added a bit to your statement there - performance probably won't suffer all that much, but other aspects of general use of the car will.

Taller sidewalls can change ride quality to some extent, so I don't agree with pDubs statement that it would "absolutely not" change. However, you'd be better off looking for a different type of tire in the correct size, as that's more likely to result in a noticeable change.

Just picking Bridgestone tires as an example, going from a 215/45-17 RE-11 to a 215/50-17 RE-11 might gain you a little bit more compliant ride, but going to a 215/45-17 RE760 or RE970AS would generate a bigger difference because the structure of the tire is fundamentally different.

Quote:
Originally Posted by LipDown_DiffUp View Post
Or if someone has a link on how to measure tire fitment I could just break out a tape measure and figure it out myself. Thanks
http://www.rimsntires.com/specspro.jsp
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Old 04-09-2014, 04:45 PM   #15
pDubs
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Yeah I guess I should have clarified. He said having a bigger sidewall will "improve the ride quality". If we are referring to not feeling bumps and potholes as much then yes.

To me ride quality is a lot more than smoothness of driving. I'd rather have quality all around, and hurting performance doesn't create quality in my mind at all.
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Old 04-09-2014, 09:52 PM   #16
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besides any change in ride quality, adding diameter will throw off your speedometer a good bit, not to mention overall gearing

if you want a better ride quality, change the type of tire instead of the size. continental dws is a nice, compliant tire for instance.
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