GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Ninja on 16 July 2011, 20:27
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OK, so the standard GTI alloy is 15" and I'm looking at 18" - how will this affect the speedo? Basically I don't want to be doing 30 on the speedo and actually be travelling 36 or something.
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If you run 225/40/18's it will be almost exactly the same rolling radius.
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http://www.discovery2.co.uk/tyresize.html