Q: Is 255/45R20 oversized compared to a stock Tesla 20-inch tire?
Yes. The 255/45R20 has a taller rolling diameter than many factory 20-inch sizes such as 255/40R20. In practice the overall tire is slightly taller, so your speedometer reads a touch low, meaning you are going a bit faster than indicated, and there is a small effect on range from the changed rolling radius. We call this out so you can decide how it fits your build.
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For the do it yourselfer or trained mechanic, our in-depth installation guides provide step by step detailed instructions on fitting your Tesla with Unplugged Performance Parts.
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