[Expert@ApexWheels]

Originally Posted by clemsonf31

Just received my 19x9 et28 ARC-8’s and fitted 245/40/19 General GMAX AS-05 tires. This was outside the recommended sizing from Apex but they fit well with no interference at all on stock alignment specs. My 18x9 EC-7’s are also for sale!
https://f30.bimmerpost.com/forums/sh....php?t=1825094

Max

Glad to hear that setup fits well! Those wheels look perfect on your F31!

-Ian

[blumagic]

Originally Posted by blumagic

-2.5F ~-1.9R camber running Federal ST-1. I just went out to do a road test, nothing rubs. Low speed full lock, hairpin turns & off camber turns at speed, freeway run.... everything I could think of with a passenger and didn't hear it rub once.

I should have better photos when I have a chance to shoot with my SLR


edit: better non-cell photos

For sale if anyone is interested, I sold my f30 and bought an f80. Only to realize they don’t fit over the brakes

[Sch0f]

Originally Posted by blumagic

For sale if anyone is interested, I sold my f30 and bought an f80. Only to realize they don’t fit over the brakes

I'm interested in buying your wheels, and tires if you still have them. PM me.

[scoobysmak]

Originally Posted by Expert@ApexRaceParts

Hi there,

I suggest taking a look at our F3X fitment guide via the following link to check out some of our recommend fitments for the F3X chassis: https://support.apexraceparts.com/hc...-Fitment-Guide

-Geirsen

Nice guide

Have a question though, I am looking at getting the Ohlins R&T coilovers but in the guide it mentioned that rubbing could be an issue. Is this in the front and the back or just one end of the car (assume mainly the front but not sure).

I am probably looking at a 18x8.5 ET 35 with a 18x9 ET 42 or maybe 38 but not wanting to get overly aggressive (EC-7R) The car will be used 95% on the street but a track day is not out of the question (I don't plan to be super competitive but would like some performance). It will be lowered to take out most but not all of the wheel gap (I understand Ohlins may not go this low but that is fine).

I see in the rear the ET of 42 is recommended with the staggered setup but you also recommend the 18x9" with a ET 31 for the squared option. I figured splitting the difference couldn't hurt.

As a note, I am not trying to run high negative camber just to fit the wheels. I would like my tires to wear somewhat normal and hopefully make 25-30k+ but won't hold my breath.

[Expert@ApexWheels]

Originally Posted by scoobysmak

Nice guide

Have a question though, I am looking at getting the Ohlins R&T coilovers but in the guide it mentioned that rubbing could be an issue. Is this in the front and the back or just one end of the car (assume mainly the front but not sure).

I am probably looking at a 18x8.5 ET 35 with a 18x9 ET 42 or maybe 38 but not wanting to get overly aggressive (EC-7R) The car will be used 95% on the street but a track day is not out of the question (I don't plan to be super competitive but would like some performance). It will be lowered to take out most but not all of the wheel gap (I understand Ohlins may not go this low but that is fine).

I see in the rear the ET of 42 is recommended with the staggered setup but you also recommend the 18x9" with a ET 31 for the squared option. I figured splitting the difference couldn't hurt.

As a note, I am not trying to run high negative camber just to fit the wheels. I would like my tires to wear somewhat normal and hopefully make 25-30k+ but won't hold my breath.

Hi there,

Coilovers will typically only reduce inner clearance on the front of the car. Due to the suspension design on most modern BMWs, the rear clearances do not change significantly with aftermarket coilovers.

I would honestly recommend the 18x9" ET31 with a 245/40-18 tire at all four corners. This setup will be a complete direct fit with no additional negative camber required and will have a deeper concave profile compared to the 18x9" ET42. Plus, you wont need to run spacers to clear your Ohlins coilovers as you would with the 18x9" ET42.

If you have any additional questions, please do not hesitate to reach out.

-Geirsen

[alohasurftoad]

Originally Posted by scoobysmak

I am probably looking at a 18x8.5 ET 35 with a 18x9 ET 42 or maybe 38 but not wanting to get overly aggressive (EC-7R) The car will be used 95% on the street but a track day is not out of the question (I don't plan to be super competitive but would like some performance). It will be lowered to take out most but not all of the wheel gap (I understand Ohlins may not go this low but that is fine).

If EC-7 consider 18x9 ET31 front, 18x9.5 ET43 rear. this will allow you to run various tire size combos.

1)245/40/18f, 255/40/18r better for smaller tighter tracks
2)245/40/18f, 275/35/18r best appearance
3)245/40/18f, 265/40/18r m2 OEM tire sizes
4)255/40/18f, 265/40/18r better for larger tracks fast tracks
5)255/40/18f, 275/40/18r max beef

personally, i'd like tire combo 4 or 1

[Rigle]

2017 430i Gran Coupe X-Drive

Apex EC-7 18x9 Et31

Continental Extreme Contact Sport 255/40/18

H&R Sport Springs

Standard alignment specs and no rubbing at all.

[Expert@ApexWheels]

Originally Posted by Rigle

2017 430i Gran Coupe X-Drive

Apex EC-7 18x9 Et31

Continental Extreme Contact Sport 255/40/18

H&R Sport Springs

Standard alignment specs and no rubbing at all.

Looks fantastic! Glad to hear there's no rub with that tire size!

-Ian

[Rigle]

Originally Posted by Expert@ApexRaceParts

Looks fantastic! Glad to hear there's no rub with that tire size!

-Ian

Thanks! I think if someone was lower than this it would rub but the H&R springs are very conservative on the X-drive and only lower it about 1 inch.

[F30_Paul_]

Apex Arc-8 19x8.5 ET35 in Satin Black with MPS4S 255/35/R19 square

Absolutely love them. These bad boys make BMWs look super aggressive.

[eljefe30]

Originally Posted by estoril_335

Ec7 anthracite 19x8.5, 9.5 et35, 43
PS4s 245/35 274/30.
Lowered with bilstein b14
No rubbing at all. [IMG][/IMG]

Long story, but extreme powerhouse screwed me so now I'm stuck with tires and no rims. Do you think 19x8.5 et35 would fit 235/40r19 tires? Your tires are 10mm wider, but I still feel like the rim is quite flush with your tire.

I wanted the same wheel dimensions as yours, but I was originally planing on VMR which seems to squeeze into smaller tires a bit better from what I can tell.

[estoril_335]

Originally Posted by eljefe30

Long story, but extreme powerhouse screwed me so now I'm stuck with tires and no rims. Do you think 19x8.5 et35 would fit 235/40r19 tires? Your tires are 10mm wider, but I still feel like the rim is quite flush with your tire.

I wanted the same wheel dimensions as yours, but I was originally planing on VMR which seems to squeeze into smaller tires a bit better from what I can tell.

Originally Posted by eljefe30

Long story, but extreme powerhouse screwed me so now I'm stuck with tires and no rims. Do you think 19x8.5 et35 would fit 235/40r19 tires? Your tires are 10mm wider, but I still feel like the rim is quite flush with your tire.

I wanted the same wheel dimensions as yours, but I was originally planing on VMR which seems to squeeze into smaller tires a bit better from what I can tell.

19x8.5 eat 35 would definitely fit without issue. Since you're gonna running skinny tire. It might look a little stretched. My 245/35 is flush and straight, but if I have to get tires again, I would go 255/35 just get a little more poke.
And for the Vmr's, for the front is gonna be similar, like et35. Back is either 9.5 with et45. Or et35.

[eljefe30]

Originally Posted by estoril_335

19x8.5 eat 35 would definitely fit without issue. Since you're gonna running skinny tire. It might look a little stretched. My 245/35 is flush and straight, but if I have to get tires again, I would go 255/35 just get a little more poke.
And for the Vmr's, for the front is gonna be similar, like et35. Back is either 9.5 with et45. Or et35.

Thanks for your detailed feedback! Yeah, that's kind of what I've determined from other posts. That stretch is gonna make me cry every time I parallel park. It seems that apex is a bit wider at the wheel-face than VMR just in general (not sure if that's the correct term). I would've loved to have done 255/35, but because I live in Salt Lake City, I needed durable snow-capable tires.

Anyways, you have a sweet setup btw!

[estoril_335]

Originally Posted by eljefe30

Thanks for your detailed feedback! Yeah, that's kind of what I've determined from other posts. That stretch is gonna make me cry every time I parallel park. It seems that apex is a bit wider at the wheel-face than VMR just in general (not sure if that's the correct term). I would've loved to have done 255/35, but because I live in Salt Lake City, I needed durable snow-capable tires.

Anyways, you have a sweet setup btw!

Thanks man.

[blau808]

Hey Apex,

I have a 2014 F31 X-drive that currently has a staggered setup. Will a square setup with 18x8.5" ET35/38 go on with no modifications and stay flush? Lastly, will the wide tires 245/40-18 work without any modifications or should I stick with the 235/40-18? Thanks!

[Desertnate]

I'll throw my own questions into the mix. Hope it isn't too inappropriate for this thread.

Looking at the costs of setting up a wheel/tire setup for autocross using ARC-8s. The car is a totally stock RWD M Sport 435i with the THP.

Is there any benefit in going with the 18x9 over an 18x8.5 wheel (square setup) if I'm going with a 245/40/18 tire? I'll be running 200-wear tires which might be a bit wider than normal summer tires.

Are the 18x9 ARC-8's really only 18lbs? That's considerably lighter than some OZ's I looked at.

[MikeyMrtnz]

@F30_Paul_ your car and my car are twins!

[F30_Paul_]

Originally Posted by MikeyMrtnz

@F30_Paul_ your car and my car are twins!

Leggggo!

[sultan340]

Looking for a set of ARC8's. Will this configuration fit without extra adjustments on my 340i M Sport 2018? I do plan on buying a coilover set such as the bilsteins for a good drop and stiffening it all up.

18x9 ET30 - 245/35-40
18x9.5 ET35 - 265/35-40 or even 275?

[PipeWerks_BKK]

Originally Posted by sultan340

Looking for a set of ARC8's. Will this configuration fit without extra adjustments on my 340i M Sport 2018? I do plan on buying a coilover set such as the bilsteins for a good drop and stiffening it all up.

18x9 ET30 - 245/35-40
18x9.5 ET35 - 265/35-40 or even 275?

This car has not been lowered yet. Still on the stock suspension. Waiting for BC coilovers.

Spec: F18x9 et30 + 255/35r18
R18x9.5 et35 + 275/35r18

Sitting on Continental ExtremeContact DWS06 Plus

[sultan340]

Originally Posted by PipeWerks_BKK

This car has not been lowered yet. Still on the stock suspension. Waiting for BC coilovers.

Spec: F18x9 et30 + 255/35r18
R18x9.5 et35 + 275/35r18

Sitting on Continental ExtremeContact DWS06 Plus

Looks very good already. A subtle drop will make it even better. I am going for that wheel size also! Thanks

[kupoy]

Originally Posted by Grecg

The perfect fitment for F30. For those who are curious:

19x9 et 28 245/35/19
19x9.5 et 33 265/35/19

No fender roll, no rubbing 🤞🏽

Nice!

Mind sharing where you got the front lip? Car looks awesome!