[flex_340]

Hey everyone, I have Apex arc-8 wheels 18x8.5 et38 square setup and Im looking into getting new summer tires, I do want to change wheels eventually and get a better setup but not at the moment.

I was considering doing 255/40/18 all around but I heard it might look weird with those wheel specs. Anyone have recommendations? and would I most likely need spacers with that setup and what size would work?

[alohasurftoad]

https://f30.bimmerpost.com/forums/sh...0&postcount=85

255/40/18 on 18x8.5 ET38 Arc-8's, square, doesn't look weird imo. in fact, it looks great...

[flex_340]

Originally Posted by alohasurftoad

https://f30.bimmerpost.com/forums/sh...0&postcount=85

255/40/18 on 18x8.5 ET35 square doesn't look weird imo

I should still be able to lower it a decent amount with a setup like that right? getting coilovers next week

[alohasurftoad]

Originally Posted by flex_340

I should still be able to lower it a decent amount with a setup like that right? getting coilovers next week

fyi, there's been more than a few members that have had issues when lowering x-drives greater than 1.5"(38mm). as you lower, the front axle's geometry and forces on it change and some have had the axle fail by shear. the axle also starts to unseat from the differential as you lower and some have had the axles pop out.

while some have lowered x-drives more than 1.5" without issue, i've read enough posts where problems arose from lowering an x-drive too much. the link below is a thread where they determined what the max lowering should be.
https://f30.bimmerpost.com/forums/sh...1514736&page=2

personally, i'd follow the advice from such thread and not lower an x-drive more than 1.5" or 38mm.