[alejandro312]

Will 245 45 18 fit on my 18x8 wheels with no rubbing?? im also going on some h and r lowering springs and worried that might cause problems. any help??

[jmanB45]

That is a very tall tire (26.7") which will also bulge on 18x8 wheels. They will probably rub on H&R springs.

Here is that tire size on 18x8.5, I believe on Eibach springs or stock:
https://f30.bimmerpost.com/forums/sh...0&postcount=10

For lowering on H&R, a better choice is 245/40/18:
https://www.flickr.com/photos/929378...th/15473462560

[alejandro312]

Originally Posted by jmanB45

That is a very tall tire (26.7") which will also bulge on 18x8 wheels. They will probably rub on H&R springs.

Here is that tire size on 18x8.5, I believe on Eibach springs or stock:
https://f30.bimmerpost.com/forums/showpost.php?p=23362270&postcount=10

For lowering on H&R, a better choice is 245/40/18:
https://www.flickr.com/photos/92937842@N00/albums/72157649019367181/with/15473462560

I just test fit the tires today and yes it was a very tall sidewall and was way too close for comfort. I’m ordering 245/40/18 and lowering on h and r springs.

[Bert888]

245-45-18 8j on a F31 M-sport?
RWD

[WhiteCollarMetalHead]

I just put 245/45/18's on my style 396's on stock suspension with no issue. This is on a 335 GT though with the factory tire size being 225/50/18 so the new setup was only 0.7% smaller in diameter.

[Bert888]

Originally Posted by WhiteCollarMetalHead

I just put 245/45/18's on my style 396's on stock suspension with no issue. This is on a 335 GT though with the factory tire size being 225/50/18 so the new setup was only 0.7% smaller in diameter.

225-50-18 the old setup!
Original is 225-45-18!

Do you have foto’s?

[WhiteCollarMetalHead]

The factory tire size on the pre LCI GT was 225/50/18, at least on mine

Here is the Conti DEW 06+ in 245/45/18 on the factory wheels and suspension.

[jmanB45]

Comparing GT (F34) vs regular F30/31 is apples to oranges. Stock tires 26.9" vs 26.0" dia.

[WhiteCollarMetalHead]

Understood, that's why I clarified the car / application, but it's still the same size wheel and tire they were asking about. You brought up the bulge possibly so I figured it might help to see that size mounted on an 18x8 wheel. Agreed the arch fitment and comp to stock size isn't apple to apples