Front tire size,Question
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,698
Likes: 2
From: Bellows Falls Vermont
Front tire size,Question
My car is a 05 ,The stock front tires are 245-40-ZR 18, Goodyear Eagle F1 Super Car. Would there be a problem with running 245-45-ZR 18 , I know that the middle number is a % of the width but don't know how much side wall height difference there would be and if it would be detrimental to handling.Any Help appreciated 
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
The 245/45/18 tire is a full inch bigger diameter, I wouldn't use it unless you are going up a full inch in the back also. Will most likely effect your Active Handling and Traction control.
http://www.1010tires.com/TireSizeCalculator.asp
http://www.1010tires.com/TireSizeCalculator.asp
