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ccutaia1

Going from 20 inch rims to 18 inch rims

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Hi, 

 

On my new 2018 Edge Titanium due to the horrible ride of the 20" rims with the 245/50R20 tires, I went to 18" rims with the stock size tires 245/60R18 tires. My question is it looks like the 20-inch setup was a little taller, do I need to have the dealer adjust the tire size in the CPU of the car? Please let me know.

Edited by ccutaia1

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You can have the dealer make an adjustment or live with the speedo being .1-.3 mph off...emphasis on .1-.3 (depending on the speed you're at)

 

The dealer will charge you for about an half an hour labor for it. Personally I'd live with it. 

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those two tires should be the same overall diameter according to https://tiresize.com/ or any other tire size calculator on the web.

 

i plugged in 245 for the 18" wheels since i assumed 243 was a typo.

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ForScan can also make the tire size changes. 

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