I swapped out my 16" OEM AP1 rims for some 17" OEM AP2 V1 rims. I was wondering if this wheel size change will affect my speedometer and odometer? If so, is there an easy fix?

 

Rim size doesn't matter, you need to know the tire size. You can get a 17" tire that has the same outside circumference as a 16" tire and the speedo would be fine. Google tire size calculator.

 

Check out the Modifry yellow jacket for speedo correction

http://modifry.com/products/yj/index.htm

 

245/40/17's on the rear and your speedo will still be correct

 

go here http://willtheyfit.com/
Enter old then new size of wheel/tire and you will have your results of how far off your speedo will be.

 

How do I measure the wheel width?

I went from AP1 OEM 16" to OEM AP2 V1 17"

 

As previously stated, wheel size isnt important, it's your tire size (think overall circumference).

What were your tires sizes before/after.

 

Tire sizes before
Hankook Ventus V12 on Stock OEM AP1 wheels
Front 205/55ZR16 94W Still in decent shape
Rear 225/50ZR16 96W Down to 2/32" and 3/32"

New wheels and tires: Used, but in good shape on OEM AP2 V1 wheels
Bridgstone Potenza RE 050
Front 215/45R17 87W
Rear 245/40R17 91W


How do I read the age/year code?

 

Thanks. With that, your speedo will read slow by 0.57% which is next to nothing. So when your speedometer indicates 60mph, you're actually going 59.6 mph

As far as tire date code, look for the 4 digit code. It's in week week year year format. So date code of 3512 means, manufacture date is 35th week in 2012.

 

Thanks! This forum is awesome. I appreciate everything. I'm never too old to learn something new.