I have a set of stern st-1's 19x8, what is an ideal tire size to put on? there is a tire place around my area and they had a set of 225/40/19 in stock but i don't know if the tires would sit flush with the wheel well.

The offset of my wheels are 38. Any good suggestions is greatly appreciated thanks.

 

Recommended tire size is 245/40/19.

The wheels being 2mm different from your stock wheels aren't going to sit any different.

Your tire size has nothing to do with "sitting flush."


Any other questions could probably be answered in the stickies, the wheel and tire section, Google, Ask.com, Tirerack, etc...

 

Agree with KC, 245/40/19.