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-   -   Will wheel and tire size (+1) affect speedometer reading? (http://www.jeepgarage.org/f180/will-wheel-and-tire-size-1-affect-speedometer-reading-43499.html)

Deep Red 06-17-2012 10:27 PM

Will wheel and tire size (+1) affect speedometer reading?
 
Moving from 245-70-17 tires and wheels to 265-60-18 tires and wheels on my 3.6L MK2 Larado. Will I need to have the dealership adjust the transmission to correct speedometer reading or will there not be any variance at all?

Thanks,

Neal

SvenskaJeepGuy 06-18-2012 12:11 AM

Re: Will wheel and tire size (+1) affect speedometer reading?
 
http://www.miata.net/garage/tirecalc.html

ochoa1801 06-18-2012 05:23 PM

Re: Will wheel and tire size (+1) affect speedometer reading?
 
I push in my grand cherokee 2007 laredo. Wheels sahara 255 70 18 and the speedometer reading 5 ml less.

ItsAJeepThing 06-18-2012 06:01 PM

Re: Will wheel and tire size (+1) affect speedometer reading?
 
Quote:

Originally Posted by SvenskaJeepGuy (Post 644516)

Just checked mine
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
245/60-18 5.8in 14.8in 29.6in 92.9in 682 0.0%
265/40-22 4.2in 15.2in 30.3in 95.3in 665 2.6%

How much is 2.6% anyways?

Deep Red 06-18-2012 10:30 PM

Re: Will wheel and tire size (+1) affect speedometer reading?
 
Thanks guys, great info. Shouldn't be a problem.
Thanks again,
Neal

SvenskaJeepGuy 06-19-2012 05:58 PM

Re: Will wheel and tire size (+1) affect speedometer reading?
 
mine is off 1.2%


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