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Originally Posted by Enemies
That's great info. Thanks.
Question for you though. Moving from 17" down to 16" do I need to get my speedometer and tachometer adjusted? I'm not really sure how it works.
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Tach only measures engine speed independent of vehicle speed, so no. Speedometer, no, unless you change the size too drastically. You will actually be off by a little bit regardless, but if you do it properly it'll be around 1% speed difference, so negligible.
This site will show you the differences.