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Thread: Advice on tyre widths and rim sizes

  
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    Question Advice on tyre widths and rim sizes

    Hi, im trying to buy some new alloy wheels and tyres for my 1999 2.0SRi 3 door. You think it would be straight forward!
    So far I have been supplied wrongly with 8.5x18 with 215/35R18 fitted! As you can imagine the wheel rims protruded by 5mm! on the inner and outer rims from the tyre walls, so they were sent back at cost by me; but that is a different story for some other time.
    So I have seen some other alloys. If I purchase some 8x18 with 225/35R18 will the tyre offer some protection to the alloy and Kerbing and will they fit ok i.e. no fouling the wheels arches and suspension struts. Also I am planning to lower the car so again will 225/35R18 on 8x18 rim still clear the suspension and arches.
    All advise is welcome, please help (PS I read the car bible on this site to which I found very informative as it explains the ’J’ and et figures etc). Lookforward to you advise. cheers Mel

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    P.p.s.

    my original alloys are 6x16 with 205/50R16 fitted.

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    225 is a little wide if lowering, 215 is the size you want. Probably won't offer much protection, but having them stretched is the best look you will get.

    Just don't drive into kerbs with them

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    to cut a long story short - u want 215.35.18 on the mk4 - end of!

    just makes everything so much easier

    as for rim width it all depends how much the car is lowered or indeed how much u plan to lower it by - offset is very important so dont overlook this measurement

    Id always advise a nice 7.5" wide rim - if ur looking at 18s then a nice round and even 40mm ET (offset) running 215.35.18 is ideal. Keeps everything running perfect and the rims sit nicely in the arches. I had these measurements on my 18s and lowered about 60mm all round with no rubbing.

    Basic rule (either 17" or 18" wheels)
    7" & 7.5" wide then offset 38-49 req'd
    8" wide then offset 42-49 req'd
    In all instances run 215.35.18 rubber

    8.5" is possible but it makes offset and lowered amount so much more crucial and really in all honesty they are a bit on the wide side for the Astra G

    HTH

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    Thanks guys i will follow your advice and look for some 7.5's instead with 215.35.18.

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