The first number is the width of the tire in millimetres at cross section.Same circumference (first number in tire size). For example, 2014 Cruze's shared the 225 circumference across 17 inch and 18 inch rims. My '14 Cruze 1LT has 215 tire circumference though since it is a 16 inch rim.
yeah taller sidewall, more comfort, less sporty.OK Thanks
That means I can increase the height of the tire from the 45 currently on the LTZ.
I'm told increasing the height of the tire gives a better ride.