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Thread: What size wheels are best

  
  1. #1
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    marwoodscoupeturbo's Avatar
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    What size wheels are best

    Hi everyone could anyone advise on what size wheels to fit to my coupe turbo!!!!????
    I heard if they are to big ya loose speed not what i want lol
    thanks marwood

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    GB's Avatar
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    first of all this is posted in the wrong section (mk1/2/3) but dont worry - one of the mods will move it.

    Theres no worries about speedo inaccuracies if u stick to tried n tested wheel widths/diameters and tyre combos. Remember that most speedos over read anyway so you may even find that fitting bigger rims improves the accuracy...mine did and I went from 14" steelies to 18" alloys.

    The stories about losing speed are not necessarily true either - as long as the rolling radius of the wheel/tyre combo is the same as the originals (or thereabouts) then the loss of acceleration will be negligible

    For instance on the Astra G the standard fit 17s are 7.5" wide running 215/40/17 rubber.

    Go for 18s and u ideally want to be running 7, 7.5 or 8" wide with 215/35/18

    19s then 7.5 or 8" wide with 215/35/19 rubber.

    Youve also got the more important wheel offset to get right and this can vary depending on how low ur car is or how low u intend to drop it in future.

    Personally speaking Id only go as far as 18s - get some 7.5" wide rims with an offset of between 38 & 49mm running 215/35/18 rubber and youll then be able to drop it upto 60mm with no arch rubbing problems.

    Having said that....your current standard rims are top notch and if u do decide to upgrade then you'll be able to flog ur current ones on for quite a tidy sum.

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    lee gsi's Avatar
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    Also best for what?

    I have 19's that to me look the best size but as there is more alloy than a 17" wheel they are also hevier which does slow the car down a bit.
    The truth is always the truth even if you haven't realised it yet...

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    marwoodscoupeturbo's Avatar
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    thanks for the advise gordie and lee!!
    ya 19's look wicked on the coupe is it the turbo ??????
    cheers guys regards marwood

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