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[dyllan12]

Hey what's the widest tires i can put on 18x8.5 et 30

[cokolwiek]

hi

you can easily figure it out using: https://www.willtheyfit.com/

[vester86]

255 is about the max you can fit on any 8,5 rim. maybe 265

[Monger007]

I have 265 on the rear and no issues.

[dyllan12]

Thanks y'all !

[nsjames]

I just did 255 on 8.5

tire guy said it was a bitch.

[tcphoto]

I have PS4S 265/35/18 on the rear of my E92 and love the look.

[Monger007]

Originally Posted by tcphoto

I have PS4S 265/35/18 on the rear of my E92 and love the look.

Stunning car that you obviously look after like a bar of gold

[mweisdorfer]

Originally Posted by Monger007

I have 265 on the rear and no issues.

I was gonna say 265/35/18.

Is your car lowered? M-sport suspension?

I have the B-12 Kit. I'm not sure I could get 265's on a lowered sedan. 255 - yes

[Monger007]

Originally Posted by mweisdorfer

I was gonna say 265/35/18.

Is your car lowered? M-sport suspension?

I have the B-12 Kit. I'm not sure I could get 265's on a lowered sedan. 255 - yes

I have the M Sport but at my location this model was not fitted with M Sport Suspension when manufactured. So my vehicle is standard from the factory.

I also went up one size on the front and fitted 235 x 40 x 18

[iqraceworks]

I run 265/35/18's on the back with the factory 8.5 wheels. No issues.

[iqraceworks]

Originally Posted by mweisdorfer

I was gonna say 265/35/18.

Is your car lowered? M-sport suspension?

I have the B-12 Kit. I'm not sure I could get 265's on a lowered sedan. 255 - yes

I have the B12 pro kit on mine.....265's fit fine in the rear.

[mweisdorfer]

Originally Posted by iqraceworks

I have the B12 pro kit on mine.....265's fit fine in the rear.

Hmm. Good to know.

When my tires wear out, I'm getting new 18" rims.

I might buy 313 wheels. Probably try & get four 18 x 8.5. I know from the factory they were 8.0 in the front & 8.5 in the rear.

Not sure if I will go 235/40/18 in the front & 255/35/18 in the rear or just go 245/40/18 square.

Not sure if 245/40/18 is too big on the front with 8.5" wide rims? I have the B-12 Kit. I'm fairly positive my car is lower than any car with the standard M-sport package. I know my car is lower than a 335is.

[iqraceworks]

Originally Posted by mweisdorfer

Hmm. Good to know.

When my tires wear out, I'm getting new 18" rims.

I might buy 313 wheels. Probably try & get four 18 x 8.5. I know from the factory they were 8.0 in the front & 8.5 in the rear.

Not sure if I will go 235/40/18 in the front & 255/35/18 in the rear or just go 245/40/18 square.

Not sure if 245/40/18 is too big on the front with 8.5" wide rims? I have the B-12 Kit. I'm fairly positive my car is lower than any car with the standard M-sport package. I know my car is lower than a 335is.

When I got my car, the previous owner had 255/35/18's on the front.....surprisingly, they didn't rub....but they just didn't need to be that wide. I replaced them with 235/40/18.....and the car seems to steer and handle much better without those big wide tires on the front.

Originally Posted by iqraceworks

When I got my car, the previous owner had 255/35/18's on the front.....surprisingly, they didn't rub....but they just didn't need to be that wide. I replaced them with 235/40/18.....and the car seems to steer and handle much better without those big wide tires on the front.

The answer is always more camber, not less tire dude!!

Yeah, 235/40/18, 245/40/18, 255/35/18, etc. all work...just depends on what you're going for OP.

[nsjames]

put me in the same crowd of didn't like wide tires on the front.

went back to 225/40
kept 255 rears.

[SanNico335i]

255 is the widest I'd go on 8.5. Going wider may sacrifice side wall support, loss of tire performance and ride quality.

For most E9X applications, 235/40 on 18x8.5 is a great front fitment option.