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The BMW Range
5 Series
E39
Style 66 Rims - Fitting Problem
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<blockquote data-quote="niche" data-source="post: 710068" data-attributes="member: 22426"><p>The pics will come as soon as the weather changes and the background lush green :smile: (so vain).</p><p></p><p>Just to stir some discussion if any, re tyre sizes.</p><p></p><p>The original E39 came with Style 48 rims that are 7J x 16 inches, fitted with 225/55 tyres.</p><p></p><p>After doing some search on the net, if the Style 66 rims (17 inches) are fitted with:-</p><p></p><p>235/45 tyres, the roll radius will change by -1.68% and 255/40 by -2.75% ;</p><p>225/45 by -3.06% and 245/40 by -3.98% ;</p><p>225/50 by +0.46% and 245/45 by -0.31%.</p><p></p><p>That is the reason why I went for the staggered 225/50 and 245/45 - the least changes to roll radii. All round 245/45 is a good option as the change in roll radius is minimal and the tyres can be rotated.</p></blockquote><p></p>
[QUOTE="niche, post: 710068, member: 22426"] The pics will come as soon as the weather changes and the background lush green :smile: (so vain). Just to stir some discussion if any, re tyre sizes. The original E39 came with Style 48 rims that are 7J x 16 inches, fitted with 225/55 tyres. After doing some search on the net, if the Style 66 rims (17 inches) are fitted with:- 235/45 tyres, the roll radius will change by -1.68% and 255/40 by -2.75% ; 225/45 by -3.06% and 245/40 by -3.98% ; 225/50 by +0.46% and 245/45 by -0.31%. That is the reason why I went for the staggered 225/50 and 245/45 - the least changes to roll radii. All round 245/45 is a good option as the change in roll radius is minimal and the tyres can be rotated. [/QUOTE]
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Style 66 Rims - Fitting Problem
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