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  TOV Articles > First Drive: 2019 Acura RDX > > 20 & 19 Wheel diameters

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RAV
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20 & 19 Wheel diameters [View Article]    (Score: 1, Normal) 06-05-2018 13:56
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I find this a little odd. The stock tires are 235/55 19's. That translates to a 129.25mm side wall. If the 20's were the same over all diameter you would have to reduce the side wall of the 19's 1/2" (12.7mm). 129.25 - 12.7 = 116.55. The ASpec 20's are 255/40. That yields a side wall of 102mm, 1/2 shorter per side wall, or 1" overall. This must be the reason why the Aspec cars do not fill the wheel arches as much as the stock tires. Would Honda be recalibrating the speedometer in Aspec cars or the non Aspec with the accessory 20's? All other car companies larger wheel packages are the same over all diameter as the smaller wheels. Any thoughts

 
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