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      04-11-2021, 01:28 PM   #111
Jamesjedi
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Great thread. What would work for a 2015 m235i track edition with regards to the widest rubber that will fit in 18ís? Iím thinking 8.5/9x18 or 8.5/9.5x18. Thanks.
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      04-14-2021, 02:57 PM   #112
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Heyo!

I replied to the other thread, but here ya go.

https://support.apexraceparts.com/hc...-Fitment-Guide

That will be a massive help to find what options fit you best.

josh
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      04-20-2021, 11:17 AM   #113
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Quote:
Originally Posted by Jamesjedi View Post
Great thread. What would work for a 2015 m235i track edition with regards to the widest rubber that will fit in 18ís? Iím thinking 8.5/9x18 or 8.5/9.5x18. Thanks.
Same! Let me know what you decide, but itís the ARC8s or FL5s in bronze for me so far.
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      04-21-2021, 01:33 PM   #114
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Quote:
Originally Posted by Jamesjedi View Post
Great thread. What would work for a 2015 m235i track edition with regards to the widest rubber that will fit in 18ís? Iím thinking 8.5/9x18 or 8.5/9.5x18. Thanks.
Thanks! I generally recommend our staggered setup with either an 18x8.5 ET35/38 wheel or ET45+5mm spacer up front and an 18x9.5 ET58 in the rear. If you are maximizing tire width, you will want to run a 265/35-18 in the rear which will require either a 5mm spacer or trimming your shock dust boot and fender liner to prevent rubbing. The ET58 wheel was made for the high offsets of the 1 series originally, but works well in this application with the 5mm spacers.

Quote:
Originally Posted by AmuroRay View Post
Same! Let me know what you decide, but itís the ARC8s or FL5s in bronze for me so far.
Our FL-5s are a great choice in many cases and can work on these cars if you are running a square 18x8.5 ET35 setup front and rear, but we don't offer the higher offsets for the rear fitment in our FL-5 design. The 1 and 2 series specific staggered offsets are only available in our ARC-8, EC-7, and forged EC-7R designs.

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Originally Posted by JD11937 View Post
@Expert@ApexRaceParts would you guys ever be interested in developing an aerodisc like product that could be fitted to some of your existing wheels?
No plans for this currently but I was discussing this half-joking with my colleague. The subject came up when we were discussing Tesla wheels as some of those Tesla guys really care about the aerodynamics of their wheelsets. The initial problem I see is that we would want them to be functional and actually help with aero, but the CFD and development/engineering costs would be really high for a product like this on a per-unit basis with a very small proportion of our customers interested in these products. I don't think we will be pursuing them, but who knows what the future holds?

-Tom
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      04-21-2021, 07:27 PM   #115
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
I generally recommend...an 18x9.5 ET58 in the rear. The ET58 wheel was made for the high offsets of the 1 series originally, but works well in this application with the 5mm spacers.
My car has a rear Apex ARC-8 in 18X9Ĺ ET58 with a 5mm spacer. It has camber of -2.2į. The image below shows the car with a 255/35-18 R888R mounted on the wheel.

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2017 M240i: MT, Sunroof Delete, EB, Leather, Driving Assistance Package, Heated Front Seats
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9 & 18X9Ĺ ARC-8s; 60mm Studs; Dinan Elite V2 & CAI; Rogue SSK; Orange MPerf BBK; Schroth Quick Fit Pro

Last edited by dradernh; 04-22-2021 at 03:08 PM..
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      04-22-2021, 04:54 PM   #116
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hey guys quick question...would these spec wheels fit on my m240i?

front: apex arc 8 18x8.5 et38, 225/35/18
rear: apex arc 8 18x9.5 et58, 265/35/18

thank you!
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      04-22-2021, 05:09 PM   #117
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Quote:
Originally Posted by st0nge View Post
hey guys quick question...would these spec wheels fit on my m240i?

front: apex arc 8 18x8.5 et38, 225/35/18
rear: apex arc 8 18x9.5 et58, 265/35/18

thank you!
Short Answer: Kind of!

Long answer:

Let's start with the rear... 18x9.5 ET58 will work back here but with the wider 265/35-18 tire you will need to either run a 5mm spacer for additional inner clearance or trim your shock dust boot and fender liner slightly. Tire models that run wider will require more aggressive trimming to prevent rubbing. Alternatively, you can run 255/35-18s in the rear for an easier fit.

For the front: I would not recommend a 225/35-18 for the front. This isn't tall enough in most cases for this application. A 225/40-18 would be a better fit, but I would only run a 225 in the front if you are running a 255/35-18 in the rear. If you are going to go with a 265/35-18 in the rear, I would recommend a 235/40-18 tire in the front to better match the wider rear tire.

Depending on the tire model and ride height of the car, you may need some additional negative camber up front with a 235/40-18 and the ET38 wheels.

-Tom
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      04-23-2021, 09:01 AM   #118
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Short Answer: Kind of!

Long answer:

Let's start with the rear... 18x9.5 ET58 will work back here but with the wider 265/35-18 tire you will need to either run a 5mm spacer for additional inner clearance or trim your shock dust boot and fender liner slightly. Tire models that run wider will require more aggressive trimming to prevent rubbing. Alternatively, you can run 255/35-18s in the rear for an easier fit.

For the front: I would not recommend a 225/35-18 for the front. This isn't tall enough in most cases for this application. A 225/40-18 would be a better fit, but I would only run a 225 in the front if you are running a 255/35-18 in the rear. If you are going to go with a 265/35-18 in the rear, I would recommend a 235/40-18 tire in the front to better match the wider rear tire.

Depending on the tire model and ride height of the car, you may need some additional negative camber up front with a 235/40-18 and the ET38 wheels.

-Tom
Wow , Thank you for the detailed response I really appreciate it! Was only considering this specific setup because I saw it pop up on my local marketplace, but Iíll hold off. Thanks!
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      04-27-2021, 07:51 PM   #119
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Anybody running either the ARC-8 in 19s squared OR the EC-7R in a staggered setup? Please post a picture if possible
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      04-27-2021, 10:08 PM   #120
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First - any way we can reasonable concavity?
And next, I emailed earlier this week - 18X9 ET 42 F/R with a 12mm spacer is the only way to do a true Square 255 set up, right?

Dual purpose car.
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      04-28-2021, 12:39 PM   #121
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Quote:
Originally Posted by Hayaan_f22 View Post
Anybody running either the ARC-8 in 19s squared OR the EC-7R in a staggered setup? Please post a picture if possible
We unfortunately do not have pictures of either setup. If looking for a 19" ARC-8 fitment, a square 19x8.5" ET35 would likely be the best option. For a staggered EC-7R fitment, you could potentially run the following fitment:

Front: 18x8.5" ET35 with 225/40-18 tires
Rear: 18x9" ET42 with 255/35-18 tires

Quote:
Originally Posted by AmuroRay
First - any way we can reasonable concavity?
And next, I emailed earlier this week - 18X9 ET 42 F/R with a 12mm spacer is the only way to do a true Square 255 set up, right?

Dual purpose car.
If looking for concavity, our Forged ARC-8 and EC-7R are great options as all sizes come in a profile 2 "medium concavity" design. This is the only way to get some concavity on this chassis without fender modifications, narrow tire sizes and a large amount of negative camber.

For a square 255 fitment, that is correct, the 18x9" ET42 with a 12mm front spacer is the best option. Some negative camber will be needed up front to prevent rubbing. Using a 8mm front spacer along with hub extenders can also work depending on the exact tire used. This is a good route if trying to avoid adding negative camber.

-Ian

Last edited by Expert@ApexRaceParts; 05-03-2021 at 03:51 PM..
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      05-03-2021, 03:18 PM   #122
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Hi everyone! Just want to let you all know that i was able to fit 235/40/18 F and 265/35/18 R on my 2019 M240i Coupe with ZERO issues and am beyond happy!
Here's the stats:

2019 M240i Coupe
Stock height/springs
EC-7 Flow Form 8.5 ET35 Front
9.5 ET58 Rear w/ Apex 5mm spacer w/ extended lug nuts.
Michelin PS4S

Completely transforms the driving experience (and they look fantastic!). Also, i WAS on 225/40/18 and 255/35/18 Michelin A/S 3+ and the PS4S are definitely quieter and 1000x more comfortable. I'm pretty shocked actually. Grip is ridiculously good.

Anyway, thats my 2 cents. The Apex guys have been extremely helpful as have all you on this forum, much appreciated
Attached Images
       

Last edited by PurpleFunkMan; 05-03-2021 at 07:02 PM..
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      05-03-2021, 07:28 PM   #123
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Quote:
Originally Posted by ContingencyX View Post
Thanks everyone who've posted their cars and setups in here. I've owned 40+ cars in the 18 years I've been driving and this was by far the biggest pain in the ass to decide on a wheel/tire setup having come from the Miata world previously.
Iíll 2nd that statement. This is my first experience shopping for aftermarket wheels. The fitment specifics for our car & my general lack of knowledge are driving me insane
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      Yesterday, 01:18 PM   #124
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Quote:
Originally Posted by PurpleFunkMan View Post
EC-7 Flow Form 8.5 ET35 Front
9.5 ET58 Rear w/ Apex 5mm spacer w/ extended lug nuts.
Are there any real disadvantages or concerns when it comes to using spacers or camber plates? Iím a newb. & donít know much at all about this but my initial knee jerk reaction was to avoid setups that require either.
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      Yesterday, 01:43 PM   #125
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Quote:
Originally Posted by 60_Driver View Post
Are there any real disadvantages or concerns when it comes to using spacers or camber plates? Iím a newb. & donít know much at all about this but my initial knee jerk reaction was to avoid setups that require either.
I was in the same boat as you. NERVOUS!
I don't use camber plates at all. And the 5mm spacers in the rear fit like a glove. The America's tire guys were very impressed with Apex's spacer and fit.
Also, I don't track this car. I do drive aggressively though on back roads etc.

Again I'm on stock springs and height. No issues at all. Seriously the car is so much more enjoyable now. The wider tires (and quality) have a lot to do with it.

I've had my car new since January 2019, and I wish I had done this immediately!
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      Yesterday, 02:24 PM   #126
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Quote:
Originally Posted by 60_Driver View Post
Are there any real disadvantages or concerns when it comes to using spacers or camber plates? Iím a newb. & donít know much at all about this but my initial knee jerk reaction was to avoid setups that require either.
Hi there,

As far as spacers go, for most modern BMWs you will not run into any issues as long as you avoid spacers larger than 5mm and smaller than 12mm. This is due to the fact that most modern BMWs have a 10mm hub lip, so any spacers larger than 5mm or smaller than 12mm do not typically have enough material to mount flush with both the hub lip and the wheel. This is why most negative things you hear from BMW owners running spacers typically are using a 10mm, which can increase wheel hardware stress and will have a higher chance of increasing NVH. Other than that, as long as you are also using the correct extended hardware with said spacers, you shouldn't have any issues.

Camber plates are one of the best modifications you can do if you plan on taking the car to the track. Since most modern BMWs do not have any way to adjust front negative camber from the factory, camber plates are typically the best mod to get additional front negative camber dialed-in. Not only will camber plates help you run a wider/more aggressive wheel/tire setup but they will also greatly improve the car's turn-in response and handling feel. When using more aggressive track-focused tire compounds, additional negative camber will also help avoid prematurely wearing the outer shoulders of your tires.

For street use, as long as you stay under -2.5 degrees up front, you should not notice any camber-related inner-tire wear or adverse driving characteristics, such as tramlining.

Hope this helps clarify those two topics! If you have any additional questions, please do not hesitate to reach out!

-Geirsen
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      Yesterday, 03:23 PM   #127
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Quote:
Originally Posted by PurpleFunkMan View Post
I was in the same boat as you. NERVOUS!
I don't use camber plates at all. And the 5mm spacers in the rear fit like a glove. The America's tire guys were very impressed with Apex's spacer and fit.
Also, I don't track this car. I do drive aggressively though on back roads etc.

Again I'm on stock springs and height. No issues at all. Seriously the car is so much more enjoyable now. The wider tires (and quality) have a lot to do with it.

I've had my car new since January 2019, and I wish I had done this immediately!

Good stuff, thanks for the quick response!
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      Yesterday, 03:39 PM   #128
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Hi there,

As far as spacers go, for most modern BMWs you will not run into any issues as long as you avoid spacers larger than 5mm and smaller than 12mm. This is due to the fact that most modern BMWs have a 10mm hub lip, so any spacers larger than 5mm or smaller than 12mm do not typically have enough material to mount flush with both the hub lip and the wheel. This is why most negative things you hear from BMW owners running spacers typically are using a 10mm, which can increase wheel hardware stress and will have a higher chance of increasing NVH. Other than that, as long as you are also using the correct extended hardware with said spacers, you shouldn't have any issues.

Camber plates are one of the best modifications you can do if you plan on taking the car to the track. Since most modern BMWs do not have any way to adjust front negative camber from the factory, camber plates are typically the best mod to get additional front negative camber dialed-in. Not only will camber plates help you run a wider/more aggressive wheel/tire setup but they will also greatly improve the car's turn-in response and handling feel. When using more aggressive track-focused tire compounds, additional negative camber will also help avoid prematurely wearing the outer shoulders of your tires.

For street use, as long as you stay under -2.5 degrees up front, you should not notice any camber-related inner-tire wear or adverse driving characteristics, such as tramlining.

Hope this helps clarify those two topics! If you have any additional questions, please do not hesitate to reach out!

-Geirsen
Great info. Thanks for the reply!
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