I'm looking at purchasing Sumitomo HTR Z II's from the Tire Rack mainly due to the great price. I am a college student and money is tight. Anywho, the question I need answered is about the sizing of tires. The rims I ordered are bullitts in a 18X10 and 18X9 for the fronts. On American Muscle, they say the best fitment for the 18X10 rim is 275/40/18and for the18X9 is 255/45/18.

Can I go with 245/45/18's in the front instead of 255? Is there any problems both appearance wise or performance wise with changing that size of tire? Thanks.

 

What year and model of mustang do you have?