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225 on a 17x9?

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Old Dec 18, 2013 | 08:41 AM
  #11  
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yea unless they are the same car and i just didnt know the whole time. Im not too well versed in road racing. but i figure just because it works for a miata doesnt always mean it should work for an s2000. different weights of the car etc. from what i have seen 235 for the front seems to be the magical size for the road racing threads. like i said im not very familiar with this topic.
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Old Dec 18, 2013 | 08:58 AM
  #12  
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It's simple math guys, it doesnt matter what car you apply it to.

The ideal setup for road racing is to get the tire squared up to the wheel as best as possible.
an 8.8 inch contact patch on a 9 inch rim isnt far off from perfect. Thats why I posted 225mm = 8.8 inches

Here's what the "stretch" you guys are worried about looks like.

http://farm7.static.flickr.com/6140/...08461ab1_b.jpg
http://farm7.static.flickr.com/6022/...35dd9c01_b.jpg

The other members on this thread who brought up miatas are just chiming in to confirm the fitment will be fine since it's been proven on other cars who regularly run these sizes.
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Old Dec 18, 2013 | 09:04 AM
  #13  
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225 with a 9" will be fine up front. Not dangerous if that’s the concern. If your running in a class that cant use anything wider then 225, it would actually be the preferred rim width to get the most contact patch and steering response out of the tire and that’s great for the front of this car.

It’s the same profile as running a 255 on a 10" which is also the preferred combination to get the most out of the tire.

Generally speaking, running the same mm width rim to tire width is what you always want to aim for to maximize the tires performance. The only reason this wouldn’t or isnt done is because of fuel efficiency on the street, cant find the right fitting offset, or a race class where a set rim width is part of the rules, so you will see guys running overly sized tires to get the most tire they can on the ground, even though in more extreme cases it hasn’t improved any grip due to the muffin top dished contact patch, but did lose handling precision.
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Old Dec 18, 2013 | 09:45 AM
  #14  
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Alright guys. Sounds like its a go until I move to the square

I actually thought i was gonna get bashed and everyone suggest to move to the 255

I might try a 245 on the 9 before I do the 255
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Old Dec 21, 2013 | 08:15 AM
  #15  
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This is a 235 on the 9

[attachment=50894:image.jpg]

[attachment=50895:image.jpg]

Not that bad. I think the Bridgestone will fit good. I will post pics soon
Attached Thumbnails 225 on a 17x9?-image.jpg   225 on a 17x9?-image.jpg  
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Old Dec 21, 2013 | 09:13 AM
  #16  
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^^^ Looks good to me
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Old Dec 21, 2013 | 07:38 PM
  #17  
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Originally Posted by b505
It's simple math guys, it doesnt matter what car you apply it to.

The ideal setup for road racing is to get the tire squared up to the wheel as best as possible.
an 8.8 inch contact patch on a 9 inch rim isnt far off from perfect. Thats why I posted 225mm = 8.8 inches

Here's what the "stretch" you guys are worried about looks like.

http://farm7.static.flickr.com/6140/...08461ab1_b.jpg
http://farm7.static.flickr.com/6022/...35dd9c01_b.jpg

The other members on this thread who brought up miatas are just chiming in to confirm the fitment will be fine since it's been proven on other cars who regularly run these sizes.
That tire in 225 is much wider than a RE11 in 225.

It will look a bit stretched on a 9" wheel but nothing too crazy. It might look a bit odd with the fronts a bit more stretched than the rear.
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Old Dec 21, 2013 | 10:45 PM
  #18  
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I had 225 Rivals on 17x9 PF01s and they were a bit stretched. I drove these around on the street after I switched to another tire. Im sure you will be ok, I ran extra pressure to be on the safer side.

-Marc
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Old Dec 22, 2013 | 12:43 AM
  #19  
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Originally Posted by andrewhake
Originally Posted by b505' timestamp='1387389501' post='22928808
It's simple math guys, it doesnt matter what car you apply it to.

The ideal setup for road racing is to get the tire squared up to the wheel as best as possible.
an 8.8 inch contact patch on a 9 inch rim isnt far off from perfect. Thats why I posted 225mm = 8.8 inches

Here's what the "stretch" you guys are worried about looks like.

http://farm7.static.flickr.com/6140/...08461ab1_b.jpg
http://farm7.static.flickr.com/6022/...35dd9c01_b.jpg

The other members on this thread who brought up miatas are just chiming in to confirm the fitment will be fine since it's been proven on other cars who regularly run these sizes.
It might look a bit odd with the fronts a bit more stretched than the rear.
Doesn't look odd at all on a RWD car. Ferrari's tend to run that way from the factory. The reverse does look odd however.

A tire that is pulled taught on the maximum recommended width rim provides less sidewall deflection and therefore more precise feel from the road to the steering wheel, running a tire this way up front is always optimum. A tire that's more forgiving on the rim can aid in traction on the drive wheels. Though I prefer to run the maximum recommended rim width for the rear on this particular car as well.
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Old Dec 22, 2013 | 12:47 AM
  #20  
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Originally Posted by s2000Junky
Doesn't look odd at all on a RWD car. Ferrari's tend to run that way from the factory. The reverse does look odd however.
It looks odd to me, even on a Ferrari. But yes you are right plenty of manufacturers do this.


boyguan if you for whatever reason decide you don't want to run the 225 I will gladly take them off your hands for a fair price.
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