Tire Size Calculator - tire & wheel plus sizing
Try this tyre calculator, as a rule of thumb stay within 2% difference of the standard tyre diameter.
The 255 is closer to the original diameter. I run 255's on my 20"s and the width looks really good. Given you have ET45 offset you may have some issues with that width though. But you can always try. Maybe try some 225/45s?
Bookmarks