At 31k miles the oem Hankook 185/55/15 are ready for recycling. I can buy a set of Yorky Avid Ascends 185/60/15 cheaper than the same brand with 55 a.r. The difference is between $100 to $125, which is why i am asking if any of you have up-sized a.r. and problems developed. The diameter variance is 3.17%, about 20 mm difference The circumference of the 55s is 72.29, the 60 is 74.58. If you have any thoughts, I would appreciate your imput. I will have the new set by mid May, at the latest. Thanks!