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Discussion Starter · #1 ·
I have a set of 15 inch wheels and two set's of 16" wheels

The 15" wheels have tyres 195/65, one set of 16's have 205/55 (dad's) and the other set of 16's have 205/45 (brothers).

I am currently running the 15" wheels and want to try one of the other sets.

If I run either of the other sets, how will this affect the calibration of speedometer or anything else related. And if so, how much difference will this cause?
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