[bimmer4lif3]

Hello all I am looking for some insight from the wheel gurus on selecting the accurate size and diameter for my 440 GC dropped on ASC. The car is an xdrive variant so I know I must keep the rolling diameter within the 1 percent margin. I have read that for 19 inch wheels I should run 235/40/19, on 19x8.5 +35ish, 19x9.5 +40ish 265/35/19 26.4"/26.3" does this sound correct? Can I go 19x10 in the rear without "poke" I want the rear to have some concavity to it and have not found many manufactures providing decent concavity with a 19x9.5 wheel. Any help would be greatly appreciated and if you have any pics of your setup that would be great also.

[alohasurftoad]

http://f30.bimmerpost.com/forums/sho....php?t=1166496

19x10, +40-45 with 265/40/19 rear, will work fine

[bimmer4lif3]

Thank you alohasurftoad I actually had been following that post then it just went silent. I have been looking everyday for something that doesn't cost 4-5 grand that looks good but not common. This has been very hard to achieve thus far.

[alohasurftoad]

i see. what style of wheel face are you seeking?

[bimmer4lif3]

Will 19x9 +35 R. 19x10.5 +45 With 245/35/19 on the front and 275/30/19 in the rear fit with a drop.

[alohasurftoad]

Originally Posted by bimmer4lif3

Will 19x9 +35 R. 19x10.5 +45 With 245/35/19 on the front and 275/30/19 in the rear fit with a drop.

the front will fit. i think 275/30R19 fits, however it'll be close on both sides. rays340i ran a 295/30R19 on a 19x10(not sure of the offset) and he said it did not rub. imo, 285/30R19 in the rear would be closer in diameter and look better with the 245/35R19 front, on your x-drive.

[bimmer4lif3]

Thank alohasurftoad once again. I have been all over the map with wheels lately I went from Id Klassen, Rotoform to Velgen, Avant Garde, Hre ff series, BBS and Niche. Either they have the style I want and not the size or the size and not the style lol. Its very hard to make a determination of aesthetic at this point for me. Unfortunately, I am on the east coast so my season is about to start and is shorter than most.

[alohasurftoad]

does VSForged have any designs that interest you? i believe it's all custom so you can get in the exact specs you want. those klassens are $$$$$. yeah, it's too bad HRE doesn't offer all the sizes the FF15 comes in on the FF01 and FF04

[bimmer4lif3]

I have found a set of vossen wheels that I think will compliment the car well even though they are 20 in. The specs are 20x9 et 35 and rear 20x 10.5 et 42 the tires I would run are 245/30/20 Rear: 275/30/20 does this sound like it will work with xdrive

[alohasurftoad]

Originally Posted by bimmer4lif3

I have found a set of vossen wheels that I think will compliment the car well even though they are 20 in. The specs are 20x9 et 35 and rear 20x 10.5 et 42 the tires I would run are 245/30/20 Rear: 275/30/20 does this sound like it will work with xdrive

245/30/20, 275/30/20, diameters 25.8, 26.5, difference of 2.7%, it will NOT work on your x-drive.

you'll need to do 235/35/20(stretched on 9), 275/30/20, 26.5, 26.5 OR 245/30/20, 285/25/20(25.8/25.6) 0.8% OR 245/30/20, 295/25/20, 25.8/25/8

i think it should be okay, but i am not sure if the inside of the rear tire will contact inside the rear fenderwell or strut with 10.5 +42 and 285 or 295

[bimmer4lif3]

Thank you alohasurftoad as usual providing sound advice. I was also thinking that the 20 x 10.5 et 42 was going to give me some trouble unless I can add in some camber and even then its still suspect. Back to the drawing board I guess.

[alohasurftoad]

@bimmer4lif3, in retrospect, i think 20x10.5 +42 would fit with 285(not sure about 295), however with either size it seems your tire choices are limited and very expensive, unless you ran different brands of tires front and back, which i'm sure you probably didn't care to do.

working sorta backwards, i think you ought to get 19's for better ride and more tire choices at a more reasonable price. front tire size 245/35/19 on 19x8.5 or 9, +30-35, rear size 285/30/19 on 19x10 or 10.5, +40-45 rear, for the deeper concavity. hope this helps

edit, see this page... https://f30.bimmerpost.com/forums/sh...lehpour&page=3

[bimmer4lif3]

alohasurftoad Thanks for the info. I think I might just go ahead an start looking at the 19inch selection again. The down side is that I wanted something with concavity so my selection is further limited