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Thread: 20" wheels

  1. #1
    Regular Member darko2301's Avatar
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    Default 20" wheels

    hi guys,
    i would like to put 20" 245/30 wheels on my veccy gts. Is that possible? i saw 2-3 cars on this forum running on 20-ies but i dont know if any modifications to the car were done?
    do i have to modify suspension or something to fit those wheels?
    will 245 widith fit?
    can i drive without modifying anything?
    i have sport package, and with it sport suspension

    edit: the rims should be from i500, i saw ian has those, but again i dont know if any modifications were done...
    Last edited by darko2301; 22nd December 2008 at 23:43.

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    [Ex]Admin Duncan's Avatar
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    If they're the same wheels as Ians, then as far as I can recall there were no modifications needed. He has the SRi (sport) suspension and there was no problems with rubbing on arches etc.

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    Regular Member alexander08's Avatar
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    boy on ni-vaux has these on his.. 20" ssw eclipse he said they are.. i think they are class loiking..

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    Regular Member darko2301's Avatar
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    yes, i'd put wheels identical to Ian's, and the same tyre size (245/30/20)
    so you guys think it should work without extra mods? i am curious because in manual the biggest is 235/35/19...

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    Regular Member *AJ*'s Avatar
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    Quote Originally Posted by darko2301 View Post
    so you guys think it should work without extra mods? i am curious because in manual the biggest is 235/35/19...
    In that case it makes perfect sense to run 245/30/20.

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    Regular Member G.T.S's Avatar
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    I'm allso putting 20" to my car in next summer, but my friend who is working in tire company said that i can't have 235/30/20 they have to be 225/30/20 if i want to have sthe speed counter as it should be... so the 225/30/20 hase the same size as 225/40/18 and 245/30/20 is more bigger...

    and if your using the normal sport suspension you don't have to modyfi and i herd that if you drop it 20-40mm more still you dont have to modyfi it

    I'm going to drop my car from the normal 20mm sport suspension with coilovers 50mm-70mm more and put TSW sakata 20" , becose they are only 1100€/set and the I500 are Ewo Starr:s and they cost about 1800€-2000€/set

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    Regular Member darko2301's Avatar
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    Quote Originally Posted by G.T.S View Post
    so the 225/30/20 hase the same size as 225/40/18 and 245/30/20 is more bigger...
    define the same size/bigger mate..
    if you mean radius, then it is the same 225/30/20 or 225/40/18 or 245/30/20!
    245/30/20 is just wider than 225 version, but diameter is the same!

    i saw my friend has 245/40/18 on his astra with normal suspension, and he didnt have to do anything.

    as 245/30/20 is the same widith as 245/40/18 which fits, and 245/30/20 has the same diamaeter as 225/30/20 which fits, then logic says that 245/30/2 fits

    i am only concerned about suspension, as it will suffer more on every hole..

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    Regular Member G.T.S's Avatar
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    Quote Originally Posted by darko2301 View Post
    define the same size/bigger mate..
    if you mean radius, then it is the same 225/30/20 or 225/40/18 or 245/30/20!
    245/30/20 is just wider than 225 version, but diameter is the same!

    i saw my friend has 245/40/18 on his astra with normal suspension, and he didnt have to do anything.

    as 245/30/20 is the same widith as 245/40/18 which fits, and 245/30/20 has the same diamaeter as 225/30/20 which fits, then logic says that 245/30/2 fits

    i am only concerned about suspension, as it will suffer more on every hole..
    if you have the 245/30/20 then the 30 is prosents from 245 so in 245/30/20 the tire is 245 wide and it is 73,5mm high and in 225/30/20 it 225mm wide and 67,5 hight so it will bi bigger and your speedo will fault.. But yes the 245 will fit in wide if you dont drop it to much...

    I counted my tires wich are
    1. 20/55/16
    2. 205/50/17
    3. 225/40/18
    And the nearest hight is in 225/30/20 tire the 245/30/20 will bi bigger... and the tire wide doesent mather the rims wide mather is the rim 8", 8,5", 9" or 9,5" wide mine and yours will be 8.5" so my tire will bend in to the inside and yours will just go up. so did you now understand??

  9. #9
    Regular Member darko2301's Avatar
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    ok i think i understood now

    and about the speedo, it can be easily adjusted with tech2

  10. #10
    Regular Member G.T.S's Avatar
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    Quote Originally Posted by darko2301 View Post
    ok i think i understood now

    and about the speedo, it can be easily adjusted with tech2
    But still i have the 205/50/17 winter tires wich are the different and isn't the tech2 expensive??

    I will find some phtotos to you to see when i find them

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