Quote:
Originally Posted by zenmaster
Why would the diameter change at all?
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Assuming the same profile, an increase in width also brings a corresponding increase in sidewall height.
35 series tyre. 10mm more width = 2x3.5mm = 7mm increase diameter.
And to answer the previous question....no it won't cause issues with DSC or LSD function. There will be a minor change in speedo which will more likely then not make it closer to a true reading. With the OEM MPSS tyres, 100kph indicated equals 98kph GPS.
That's the theory. In reality, different brands and models of tyre may or may not measure exactly what is printed on the sidewall. YMMV......literally.