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Do I need to recalibrate speedo if change wheel size?

han63fiesta
han63fiesta
in Ford Fiesta Club

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Hi all,

Currently have 15 inch standard alloys on my Fiesta, but wanting to put 17 inch Momo Revenge wheels on instead. Would I need to recalibrate my speedometer? Is this easy to do or would it be a trip to the garage?

Thank you,

Han

  • Quote


    No the difference in rolling circumference wont be enough to worrry about, used to swop to 16"  in the winter from 19" on my mondeo never had to worry. Do a comparison here https://tiresize.com/comparison/

    They Standard  tyre sizes for a given wheel diameter or in the handbook and on the B pillar, speedos are never 100% accurate and are normally set for the mid tyre size.

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    • Thanks 1

    Easy to change using Forscan if you do want to change it. 

  • Quote
    • Thanks 1
    7 hours ago, han63fiesta said:

    Hi all,

    Currently have 15 inch standard alloys on my Fiesta, but wanting to put 17 inch Momo Revenge wheels on instead. Would I need to recalibrate my speedometer? Is this easy to do or would it be a trip to the garage?

    Thank you,

    Han

    If you go with 205 40 r17 tyres rolling radius should be fine for the speedo. 

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    • Like 1
    • Thanks 1

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