Tire Size Changes - what to do about altered functional final drive ratio and the speedometer error?

[sgraing1]

So to all that are changing the tires and or rims and ending up with a larger overall diameter..............What are you doing to address the altered functional final drive ratio and the speedometer error?

Just curious and thanks for the replies.

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[Herbie]

So to all that are changing the tires and or rims and ending up with a larger overall diameter..............What are you doing to address the altered functional final drive ratio and the speedometer error?

Just curious and thanks for the replies.

Pretty sure people have started tooling around in Forscan and changing their tire size in their so the speedometer will be correct, but someone that has done it already should chime in I am sure.

 

[RagnarKon]

I usually reprogram via FDRS (or FORScan).

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