Thread: Tire size and rating information

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  1. #21 Re: Tire size and rating information 
    Donating User Odi's Avatar
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    Quote Originally Posted by eightyseven View Post
    I probably sound stupid, but if the rim was on 235 tire, don't I need a new 235 tire? 245 would work on the rim?
    yes, stupid question. u can put other sized tires on a rim. 245/45 is the perfect size for 18 in wheel.
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  2. #22 Re: Tire size and rating information 
    SE Level Member techweenie's Avatar
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    I just got new wheels and tires, and I'm sharing some info so you'll know. I was told 235/55R17 tires would fit perfectly but, in fact, they ever so slightly rub on the struts in the back. The wheels are 17x7.5 with 42mm backspacing. A little less backspacing would eliminate the problem and look better too.
    Last edited by techweenie; 04-15-2011 at 03:28 PM.
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  3. #23 Re: Tire size and rating information 
    DUI BABY Bio248's Avatar
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    if they are rubbing the strut, you want less offset to push the wheel farther away from the strut. however, in your case i expect something else to be wrong because those specs should be super easy to fit without rubbing, tires and wheels.
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  4. #24 Re: Tire size and rating information 
    SE Level Member techweenie's Avatar
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    Quote Originally Posted by Bio248 View Post
    if they are rubbing the strut, you want less offset to push the wheel farther away from the strut. however, in your case i expect something else to be wrong because those specs should be super easy to fit without rubbing, tires and wheels.
    I realized my mistake and edited the post. They rub on the spring seat, but just BARELY.
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  5. #25 Re: Tire size and rating information 
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    For those of us that are gonna drop back to stock(16s) or 15s whats the widest we can fit 245s?
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  6. #26 Re: Tire size and rating information 
    GTX Level Member DanGTP's Avatar
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    For a stock 6.5" wide wheel, I would recommend you not go wider than 235mm, but a 245/55-16 will fit. You may have to use a small spacer to keep the inside of the tire from rubbing, though.
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  7. #27 Re: Tire size and rating information 
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    225 is already too wide for stock wheel.

    225 is 8.9" wide, 7" wide wheels make the sidewalls straighter, handle better, less chance of cupping.
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  8. #28 Re: Tire size and rating information 
    GTX Level Member DanGTP's Avatar
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    Quote Originally Posted by matt5112 View Post
    7" wide wheels make the sidewalls straighter, handle better, less chance of cupping.
    Very true! I was just answering the question on whether or not they would fit... indeed, anything wider than 225 on a stock wheel will tend to cup.
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  9. #29 Re: Tire size and rating information 
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    thxs! is the stock rim with 6" or 7.5" wide?
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  10. #30 Re: Tire size and rating information 
    GTX Level Member DanGTP's Avatar
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    6.5", I believe.
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  11. #31 Re: Tire size and rating information 
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    i wouldnt put 245/50's on a 6.5'' wheel since it is not recommended by any tire manufacturer to do so. i am putting them on a 7'' wheel tho.
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  12. #32 Re: Tire size and rating information 
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    i would recommend 245/50/16 on the stock wheels without issues.
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  13. #33 Re: Tire size and rating information 
    GrandPrix Junkie jteske88's Avatar
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    Sweet my tires are rated for 186mph go w! 225/35zr20 90w
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  14. #34 Re: Tire size and rating information 
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    90 is pretty low.

    and that gets lower the faster you go.
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  15. #35 Re: Tire size and rating information 
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    Getting some Pulse 17" wheels which are 7.5 wide. Thinking about getting tires in the 225/55 size. Thinking about running Eagle GT's. Thoughts on these tires or other mid priced tires that you would recommend would be appreciated.
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  16. #36 Re: Tire size and rating information 
    DUI BABY Bio248's Avatar
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    stay with the stock overall diameter. 225/50 is short and ooglay.
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  17. #37 Re: Tire size and rating information 
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    Quote Originally Posted by webracin View Post
    18 Inch Rims
    245/45R18 Stock diameter.
    Should add that GXP stockers are staggered 255/45R18 front and 225/50R18 rear
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  18. #38 Re: Tire size and rating information 
    SE Level Member rocketman1989's Avatar
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    Sorry Guys, this isn't quite the right place for this I don't think... I'm a Budget Enthusiast and Need new tires so I'm taking suggestions. Sticking with stock Wheels and size: 225 60 R16 98 H-V Lookin for an all Season.
    Priorities in order are:
    Long Life
    Good Grip in ALL seasons
    Performance
    Low Roll Resistance
    Ride Comfort
    Noise Level

    Was looking at the GeneralTire Altimax HP... thoughts or suggestions?
    Last edited by rocketman1989; 12-04-2011 at 06:19 AM. Reason: Wrong Thread Location
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  19. #39 Re: Tire size and rating information 
    SE Level Member ralanc's Avatar
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    I have a 2006 GXP. I am ready to replace my tires.
    I have 245/45R/18's and stock Alcoa wheels all around that came with on the car when I bought it used, but I am leaning towards getting a staggered set to oem specs.
    I dont see anyone talking about stock tires. I know they are expensive. ( I will be paying $1025 out the door at Discount Tire here in Jax, FL.)
    Other than cost are there any other compelling reasons I shouldn't go with 255/45R/18's upfront and 225/50R/18 out back?
    Do that set up perform badly?
    Do they wear out quickly since I cant rotate?
    Does mileage suffer.
    Do they look weird?
    Thanks in advance for any input.
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  20. #40 Re: Tire size and rating information 
    DUI BABY Bio248's Avatar
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    being able to rotate the tires is helpful for tire wear and life. i would never put a staggered setup on any car i own..
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