speedometer adjustment

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T

tylonalsnifnfool

Senior Member
How do you adjust the speedometer when you put different sized rims and tires on your car?
 
you can bring it somewhere and have them recalibrate your speedometer
or buy a tool that allows you to do it yourself
 
Well, mechanically you could fabricate a gear that will compensate for the tire size, but unless you change the mechanism that moves the guage, I don't see how else.
 
Why would you ant to do all of that work. just get a rim & tire set up at the same size. you'll only be off by 1 or 2 MPH. Why do all that and them have to do it again when you change your rims. Rims size doesn't matter it's the overall diameter of the rim and tire together.
 
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