Quote:
Originally Posted by Phalanx
going from the stock 16"s on an EX to 18"s will likely throw off your speedo... just be aware of that
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you would reduce the sidewall hight to compensate.
lowering the sidewall ratio from 55 to 45 would only throw off the speedo by 1.5%.
alternativley getting a slightly wide tire like a 215 width, and then a 40 sidewall ratio will only throw off the speedo by 0.5%. which is the tire size of the Mugen Si.