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[feuer]

Originally Posted by Expert@ApexRaceParts

As mentioned, your feedback is greatly appreciated We will note that when running your specific suspension setup and tire combo, there may be a risk of rubbing.

However, we just want to make aware that there are many suspension and tire setups that have been proven to be a direct fit on the E9X chassis with the 18x9" ET30/ET31. Rubbing due to inner clearance is extremely rare, and can be caused by a variety of factors.

-Matt

They aren't direct fit as has BEEN proven that they rub. Enlighten me please on what factors can cause inner clearance issue.

[Expert@ApexWheels]

Originally Posted by feuer

They aren't direct fit as has BEEN proven that they rub. Enlighten me please on what factors can cause inner clearance issue.

We have hundreds of customers running our 18x9" ET30/ET31 without issue. This is the first significant issue of rubbing due to inner clearance that we have seen. Typically there can be very minor rubbing on the fender liner when an aggressive compound is used, but even that has been rare.

I do not know the exact reason why rubbing has occurred on your setup, but changes to the suspension can have an impact on fitment. We have not tested your exact fitment in house, so I cannot be 100% specific as to what affected the clearance in your case.

Again, we appreciate your feedback.

-Matt

[feuer]

Originally Posted by Expert@ApexRaceParts

We have hundreds of customers running our 18x9" ET30/ET31 without issue. This is the first significant issue of rubbing due to inner clearance that we have seen. Typically there can be very minor rubbing on the fender liner when an aggressive compound is used, but even that has been rare.

I do not know the exact reason why rubbing has occurred on your setup, but changes to the suspension can have an impact on fitment. We have not tested your exact fitment in house, so I cannot be 100% specific as to what affected the clearance in your case.

Again, we appreciate your feedback.

-Matt

There you go! You have not tested my setup. Neither in house nor on track. You have neither tested other cars with identical setup that also rub. On the hundreds of customers without issue? : if the tree fall in the woods and nobody hears it does it really happen?

[Biginboca]

Expert@ApexRaceParts

feuer

Those pics posted by Apex are e90’s. Feuer you have a e92 correct?

I’m about to confirm fitment on my e92. As I write this I’m waiting on the tire shop to mount my 255/35r18 Ventus V12’s onto my 8.5” ET 33 front wheels. (I asked them to hold my old tires for 2 days just in case I need to throw them back on, lol)

Will confirm fitment on my car in a few hours...

[feuer]

Originally Posted by Biginboca

Expert@ApexRaceParts

feuer

Those pics posted by Apex are e90’s. Feuer you have a e92 correct?

I’m about to confirm fitment on my e92. As I write this I’m waiting on the tire shop to mount my 255/35r18 Ventus V12’s onto my 8.5” ET 33 front wheels. (I asked them to hold my old tires for 2 days just in case I need to throw them back on, lol)

Will confirm fitment on my car in a few hours...

Apex will probably tell you that they have hundreds of customers with that setup Anyhow, 255/35/18 on 8.5et33 should be OK as the rubbing on 9et31 is minor and your rims are narrower.

[Expert@ApexWheels]

Originally Posted by Biginboca

Expert@ApexRaceParts

feuer

Those pics posted by Apex are e90’s. Feuer you have a e92 correct?

I’m about to confirm fitment on my e92. As I write this I’m waiting on the tire shop to mount my 255/35r18 Ventus V12’s onto my 8.5” ET 33 front wheels. (I asked them to hold my old tires for 2 days just in case I need to throw them back on, lol)

Will confirm fitment on my car in a few hours...

Hi Biginboca,

The E92 and E90 typically have the same front fitment. The major change was for the E90 LCI where the rear suspension was altered, reducing the amount of outer clearance compared to a pre-LCI E90. The 18x8.5" ET33 has 3mm more clearance on the strut side, and the outside edge of the wheel will retract 9mm compared to the 18x9" ET30 wheels. Therefore the 255/35-18 tires should not have issues with clearances.

Originally Posted by feuer

There you go! You have not tested my setup. Neither in house nor on track. You have neither tested other cars with identical setup that also rub. On the hundreds of customers without issue? : if the tree fall in the woods and nobody hears it does it really happen?

Originally Posted by feuer

Apex will probably tell you that they have hundreds of customers with that setup Anyhow, 255/35/18 on 8.5et33 should be OK as the rubbing on 9et31 is minor and your rims are narrower.

We do appreciate the information you provided regarding the rubbing and will make note of your suspension setup in regards to clearance with that fitment. However, your situation is not indicative of all E9X 3 series running 18x9" ET30/ET31's with 255/35-18 tires all around. We just want to make everyone aware that many customers have ran this fitment without issue.

Thank you again for the comments and information you have provided regarding your experience.

-Matt

[feuer]

Originally Posted by Expert@ApexRaceParts

We do appreciate the information you provided regarding the rubbing and will make note of your suspension setup in regards to clearance with that fitment. However, your situation is not indicative of all E9X 3 series running 18x9" ET30/ET31's with 255/35-18 tires all around. We just want to make everyone aware that many customers have ran this fitment without issue.


-Matt

You will now stop I guess. After this reply I will stop engaging you: I have 3 other 335i's in my group with the same setup and all rub! But I guess if customers don't come to you or on the forum to discuss the issue doesn't actually exist. Ok, moving on now...

[Biginboca]

So I’m not getting any rubbing as far as I can tell.

Only driven up to maybe 60 mph and maybe 10 miles but did a few rough railroad crossings at speed (40), some speed bumps, and the roads here are generally pretty crappy and I’ve had no rubbing!

[joeinsd]

Originally Posted by feuer

Even 255/35 rubs where fender and bumper meet and on full lock on the inside fender liner and it will tear up the windshield washer fluid hose.

Maybe that's why I keep getting the low fluid warning every once in a while.. I'll have to check.

And for OP:
Front right rubs on full lock backing up. Both fronts rub when hitting short dips on the freeway (there's been one consistent spot that I now slooow down for). This is likely due to my decision to have gone with 245/40 in the front, rather than the usual 235/40 up front.

Wheel specs:
Apex ARC-8
18x9 et30, 245/40 PSS (5mm spacer to clear Ohlins R&T coilovers)
18x9.5 et35, 265/35 PSS

[Expert@ApexWheels]

Originally Posted by Biginboca

So I’m not getting any rubbing as far as I can tell.

Only driven up to maybe 60 mph and maybe 10 miles but did a few rough railroad crossings at speed (40), some speed bumps, and the roads here are generally pretty crappy and I’ve had no rubbing!

Great to hear!

Originally Posted by joeinsd

Maybe that's why I keep getting the low fluid warning every once in a while.. I'll have to check.

And for OP:
Front right rubs on full lock backing up. Both fronts rub when hitting short dips on the freeway (there's been one consistent spot that I now slooow down for). This is likely due to my decision to have gone with 245/40 in the front, rather than the usual 235/40 up front.

Wheel specs:
Apex ARC-8
18x9 et30, 245/40 PSS (5mm spacer to clear Ohlins R&T coilovers)
18x9.5 et35, 265/35 PSS

Thank you for sharing! The 245/40-18 tire is a bit too tall, and is known for scrubbing under compression. The overall rolling diamater for the stock 225/40-18 tires are 25.09". When comparing wider options for the front, you have the following:

• 235/40-18 - 25.4" (1.24% difference)
• 245/40-18 - 25.72" (2.449% difference)
• 255/35-18 - 25.03" (-0.236% difference)

Therefore, a 245/40-18 is typically not recommended because it is nearly 2.5% taller than OEM spec and may result in some scrubbing. 235/40-18 is within a reasonable range to where it will not scrub. The 255/35-18 is nearly identical to the overall rolling diameter of the OEM spec. I hope this helped bring more clarity to why some rubbing may be happening.

-Matt

[snedanator]

Just a quick question for Apex. On a e92 on msport height would you say a 235 40 18 et20 8j would be safe? Or better to go with et23-27 ish? Or even 215 45 18 et20?

[Expert@ApexWheels]

Originally Posted by snedanator

Just a quick question for Apex. On a e92 on msport height would you say a 235 40 18 et20 8j would be safe? Or better to go with et23-27 ish? Or even 215 45 18 et20?

snedanator,

The ET20 offset would be just a bit too aggressive for the E92 chassis up front so we would recommend the following:

Front: 18x8.5" ET38 (OR ET35) - 235/40-18

This will provide ample clearance up front to both the suspension and the front fender without the fear of rubbing even under full compression.

I hope this helps!

- Max

[snedanator]

Originally Posted by Expert@ApexRaceParts

snedanator,

The ET20 offset would be just a bit too aggressive for the E92 chassis up front so we would recommend the following:

Front: 18x8.5" ET38 (OR ET35) - 235/40-18

This will provide ample clearance up front to both the suspension and the front fender without the fear of rubbing even under full compression.

I hope this helps!

- Max

thanks.. much appreciated 🙂