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  1. Tyres - 235s to 245s

    Alfa 159, Brera & 946 Spider
    Hi, Looking to change my 235/40/19 tyres for a set of 245s. What sidewall size do I need to keep the wheel diameter roughly the same? If I stick with 40s, will it throw the Speedo out? Thanks Sent from my Pixel 3 XL using Tapatalk