Wheel size question

[997_986]

Originally Posted by tcoradeschi

So, you have correctly sized wheels - 7x17 front, 8.5x17 rear. You don’t have correctly sized tires on them. Should be something like 205/70x17 front and 255/40x17 rear.

Not saying that has a damn thing to do with the vibration you’re dealing with, but it does explain what you saw when you swapped front for rear.

205/50 R17 fronts and 255/40 R17 or 225/45 R17 on the rears

[tcoradeschi]

Originally Posted by 997_986

205/50 R17 fronts and 255/40 R17 or 225/45 R17 on the rears

Good catch! I corrected the typo.

[BoxsterInTheSun]

Originally Posted by 997_986

205/50 R17 fronts and 255/40 R17 or 225/45 R17 on the rears

Thanks so much, this is really helpful. For the rears, are the 2 different sizes just personal preference? What's the difference? Thanks again!