[rusb.gdan]

Hi, im currently running 225/45/19 front tires and 255/40/19 rear tires and i dont want to swap them.
I want to buy new rims with the following specs:
1st spec: 8.5jx19 et 30 front and 9.5jx19 et 35 rear.
2nd spec: 9jx19 et ?? front and 10jx19 et ?? rear.
My questions are the following:
-will my tires fit the 1st and 2nd specs with or without them stretching?
-what would be the perfect et’s for the 2nd spec?

NOTE: i’ve installed eibach prokit on

[Billfitz]

Wrong forum. Post in https://f30.bimmerpost.com/forums/fo...play.php?f=423

[Mkesler75]

1st spec you are at the max limits on tire size but would work. 2nd spec would be stretching it. Pun intended. Plenty of info with a quick google search. I run a 225/45 19 8.5 square with no issues. Also tire brands vary somewhat so may be a crap shoot trying to get a 225 on a 9” rim and certainly not reccomended. However, it’s been done.

[Oksamit78]

Originally Posted by rusb.gdan

Hi, im currently running 225/45/19 front tires and 255/40/19 rear tires and i dont want to swap them.
I want to buy new rims with the following specs:
1st spec: 8.5jx19 et 30 front and 9.5jx19 et 35 rear.
2nd spec: 9jx19 et ?? front and 10jx19 et ?? rear.
My questions are the following:
-will my tires fit the 1st and 2nd specs with or without them stretching?
-what would be the perfect et’s for the 2nd spec?

NOTE: i’ve installed eibach prokit on

1. What is perfect ET in your opinion? Everybody has different understanding of perfect ET.
For example: I wanted stock staggered 598m rims to sit level with fenders. So I've used spacers 10/12 front/rear to make the ETs 20 and 30 respectively (rims are 8"x19 ET30 and 9"x19 ET42 front/rear). I have Prokit springs installed in the front only.

2. This is a very handy and accurate tool for doing wheel/tire combinations as compare (including offsets): https://www.wheel-size.com/calc/