Do I need to recalibrate speedo if change wheel size?

[han63fiesta]

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

[pragmatix]

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.

[ThaiFiesta]

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

[jbell]

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.