ccutaia1 Posted December 5, 2018 Report Share Posted December 5, 2018 (edited) 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 December 6, 2018 by ccutaia1 Quote Link to comment Share on other sites More sharing options...
onyxbfly Posted December 5, 2018 Report Share Posted December 5, 2018 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. Quote Link to comment Share on other sites More sharing options...
ben senise Posted December 6, 2018 Report Share Posted December 6, 2018 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. 1 Quote Link to comment Share on other sites More sharing options...
omar302 Posted December 6, 2018 Report Share Posted December 6, 2018 ForScan can also make the tire size changes. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.