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245/40/18s with 9.5 rims?

This is a discussion on 245/40/18s with 9.5 rims? within the Wheels and Tires forums, part of the General Help category; I was wondering if i could run 245/40/18s with an 18" by 9.5 rim?? Its on the equilivency chart but ...

  1. #1
    Member WS6ICK2K's Avatar
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    245/40/18s with 9.5 rims?

    I was wondering if i could run 245/40/18s with an 18" by 9.5 rim?? Its on the equilivency chart but I was wondering if the rim would be to wide for the tire?

  2. #2
    Junior Member d brooks's Avatar
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    i have them on a 8.5 rim . i would not put them on 9.5 way to narrow of tire

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    Junior Member d brooks's Avatar
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    i have 275/35/18 on 10 inch rim on rear

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    Crazy Canuck ! Eugenio_SS's Avatar
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    you can and will be properly mounted, actually.
    better size is 275/35-18, though.
    Eugenio_SS
    almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)

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    Senior Member JonB's Avatar
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    Quote Originally Posted by Eugenio_SS View Post
    you can and will be properly mounted, actually.
    better size is 275/35-18, though.

    Definetly agree. A 275 should be the minimum for the rear in my opinion, up front a 245 would't be to bad if you were running a 18x8 but on a 9.5 rim I would go with 275's all the way around.

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    Member WS6ICK2K's Avatar
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    Thanks , thats kinda what I figured but the 275/35/18s are just more expensive thats why I asked. Does the 275/35/18 stick out any on the fenderwell being a little wider?

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    It's stock, i swear! THEBRAD's Avatar
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    u see a lot of drift cars running wide rims with a skinny tire so the sidewalls r pushed out and they r less prone to rolling over in hard corners, my friend runs a setup like this on her daily driven evo with no problems

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    Member MnLS1's Avatar
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    245's in general are 9.645"s wide (245/25.4)=9.64566 I would run something a little wider 275's maybe

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    Member MnLS1's Avatar
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    Quote Originally Posted by 00WS6BlueMetallic View Post
    Thanks , thats kinda what I figured but the 275/35/18s are just more expensive thats why I asked. Does the 275/35/18 stick out any on the fenderwell being a little wider?
    depends on your rim specs, im runnin 275/35/18's lowered 2", no problems at all

  10. #10
    Member WS6ICK2K's Avatar
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    What springs did you go with, I was thinking about lowering mine about 1.5''

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    HERE WE GO STEELERS!!! michaelinchains's Avatar
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    275 is fine,i have fatty 295`s on my 9.5`s & im lowered w/ the eibach pro-kit..no issues atall

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    Member MnLS1's Avatar
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    Quote Originally Posted by 00WS6BlueMetallic View Post
    What springs did you go with, I was thinking about lowering mine about 1.5''
    i got the eibach 2" springs its about 1.75" lower

    Quote Originally Posted by michaelinchains View Post
    275 is fine,i have fatty 295`s on my 9.5`s & im lowered w/ the eibach pro-kit..no issues atall
    do have any pics of how much "balloon" effect (if any on rear wheels) thinking about going 295's as well

  13. #13
    HERE WE GO STEELERS!!! michaelinchains's Avatar
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    no tire pics sorry,she`s in the garage..but the 295`s fit surprisingly well.the slight "balloon" or whatever of the tire is minimal & actually protects my wheel from curb-rash.btw im running 19`s on the rear not 18`s,so keep that in mind

  14. #14
    Firebird Encyclopedia 9T8W66's Avatar
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    Here are my 275/35's and 245/40's
    Wheels are 18x8.5 F and 18x9.5 R


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    Crazy Canuck ! Eugenio_SS's Avatar
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    my 315s don't stick out... so 275s on 18s won't... unless you have crazy offset.

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    275 best fit

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