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The BMW Range
5 Series
E39
is 225 40 18 suitable for e39?
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<blockquote data-quote="xstatic" data-source="post: 409481" data-attributes="member: 6026"><p>e39 comes with stock rims of 225/55/16. The diameter of the wheel for this settings is 25.7 inches</p><p></p><p>225/40/18 - this will give a diameter of 25.1 inches. This will indicate an overread on the speedo by 2.6%. (not ideal). Rim width for this setting is between 7.5 - 9 JJ. Optimum would be 8jj</p><p></p><p>235/40/18 - diameter is 25.4 inches. Overread by 1.3% (close enough). Rim width between 8 - 9.5 JJ. Optimum 8.5jj</p><p></p><p>245/40/18 - diameter 25.7 inches. Overread by 0.1% (optimum, which is also the correct setting). Rim width between 8 - 9.5JJ.Optimum 8.5jj</p><p></p><p>And if you have staggered setup...the rear should be 275/35/18. overread 0.6%. Rim width 9 -11JJ. Opt 9.5. </p><p>although 265/35/18 is also acceptable. overread by 1.7%.</p><p></p><p>cheers...</p><p></p><p>a</p></blockquote><p></p>
[QUOTE="xstatic, post: 409481, member: 6026"] e39 comes with stock rims of 225/55/16. The diameter of the wheel for this settings is 25.7 inches 225/40/18 - this will give a diameter of 25.1 inches. This will indicate an overread on the speedo by 2.6%. (not ideal). Rim width for this setting is between 7.5 - 9 JJ. Optimum would be 8jj 235/40/18 - diameter is 25.4 inches. Overread by 1.3% (close enough). Rim width between 8 - 9.5 JJ. Optimum 8.5jj 245/40/18 - diameter 25.7 inches. Overread by 0.1% (optimum, which is also the correct setting). Rim width between 8 - 9.5JJ.Optimum 8.5jj And if you have staggered setup...the rear should be 275/35/18. overread 0.6%. Rim width 9 -11JJ. Opt 9.5. although 265/35/18 is also acceptable. overread by 1.7%. cheers... a [/QUOTE]
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The BMW Range
5 Series
E39
is 225 40 18 suitable for e39?
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