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      07-28-2016, 06:31 PM   #23
Expert@ApexRaceParts
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Originally Posted by CarsonE3x View Post
I really gotta get my set ordered already, just waiting til August!
Let us know if you have any questions leading up to your purchase

- Ryan
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      12-14-2016, 10:36 PM   #24
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Best Fitment for a 2012 135i M-sport stock suspension (staggered setup) street application?

Thanks
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      12-14-2016, 11:41 PM   #25
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Quote:
Originally Posted by jamj0911 View Post
Best Fitment for a 2012 135i M-sport stock suspension (staggered setup) street application?

Thanks

For a 1 series staggered fitment we suggest:

Front: 18x8.5" ET45 - 235/40-18
Rear: 18x9.5" ET58 - 265/35-18

The 1 series SKUs have become increasingly difficult to stock on a daily basis, and that is due to the fact that they are considered a specialty fitment. The 1 series wheel fitment is unique, requiring conservative/high offsets for proper fitment. Most APEX SKUs have the ability to suit multiple BMW chassis (like the 1M), therefore the overall market is much larger, and the production minimum requirements set by our factory do not pose an issue. On the contrary, the 1 series SKUs can only be purchased by 1 series owners, and current demand does not support our production minimums. At the end of the day, we would like to still offer these SKUs, as they are a great fit for the 1 series community, where options are limited.

There is an answer! We do not want to put our customers in a box when it comes to wheel/tire fitment, therefore we will continue to offer a wide range of wheel fitments including our specialty SKUs. Our ability to offer products to these niche corners of the community keep APEX unique. The APEX Group Buy platform that many customers have grown to love and our recent partnership with GroupBuy.com provide us with a perfect solution.

A Group Buy allows us to create interest within a particular segment of the BMW community on a particular SKU or set of SKUs. By getting a pool of buyers together, we can not only warrant a new production run, but we can discount the product for the customer as well. Whether or not we move forward with production, and at how big of a discount to the customer is fully dependent on the communities participation, therefore it is important for the community show us their interest when Group Buy's become available.

We typically announce these Group Buy on the forums, through our social media channels (Facebook & IG) as well as on our website. You may visit the GroupBuyParts.com website for more information.

- Ryan
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      06-01-2017, 01:39 PM   #26
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Give us a call If you have any questions, we will be happy to walk you

Last edited by Expert@ApexRaceParts; 08-09-2017 at 03:18 PM..
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      07-10-2017, 06:22 PM   #27
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Anthracite ARC-8's on this Black 1M:



Feel free to give us a call if you have any questions regarding fitment or availability.
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      07-24-2017, 04:57 PM   #28
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Anthracite ARC-8's compliment the Black 1M very well:



Feel free to contact us with any questions regarding fitment or availability.
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      07-26-2017, 05:30 PM   #29
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Europe BM Shop's 1M conversion with ARC-8 Wheels


Last edited by Expert@ApexRaceParts; 07-31-2017 at 05:31 PM..
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      07-31-2017, 05:31 PM   #30
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Low clearance? No problem.

These 18" Satin Black ARC-8s slide right over massive StopTech brakes.

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      08-09-2017, 03:18 PM   #31
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Give us a call or PM with any questions about fitment or clearances.

Last edited by Expert@ApexRaceParts; 08-14-2017 at 06:36 PM..
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      08-23-2017, 04:28 PM   #32
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Low clearance? No problem.

These 18" Satin Black ARC-8s slide right over massive StopTech brakes.

is that a 380mm bbk on the 18" wheels?

i stand in a fitment dilemma, currently have a 18x9.5 et22 front rim and dont know if a 380 bbk will fit
so i am thinking about going safe with a 370 tarox brakeset
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      08-31-2017, 03:04 PM   #33
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Quote:
Originally Posted by katsooba View Post
is that a 380mm bbk on the 18" wheels?

i stand in a fitment dilemma, currently have a 18x9.5 et22 front rim and dont know if a 380 bbk will fit
so i am thinking about going safe with a 370 tarox brakeset
Thank you for the question! Both our ARC-8 18x9.5" ET22 and 18x10" ET25 wheels will clear the StopTech ST-60 380mm BBK. With that said, we have not tested the 370mm Tarox brake kit in house. If you would like us to test your kit, feel free to email us a brake template of your kit to expert@apexraceparts.com

-Matt
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      12-11-2017, 02:42 PM   #34
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TIRES NOW AVAILABLE
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View Complete Tire Selection

Add tires to your ARC-8 wheels with free in-house professional mounting, balancing, and quality control inspection. Check out our tire selection and feel free to contact us for a recommendation.

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      08-07-2018, 04:39 PM   #35
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Now available due to popular demand, red APEX centercaps! Use this link to check them out and place a pre-order.

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      10-11-2018, 07:44 PM   #36
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What would you recommend on a 125i (128i for US) running KW V3s and front M3 bits (upper and lower arms).

No camber plates, since they are not TUV legal in Germany, however with my current setup and no M3 front arms my KW installer managed to get -1.7 camber in the front.

Looking for a track day setup not a daily.
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      10-12-2018, 01:41 PM   #37
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Quote:
Originally Posted by Zombie_Head View Post
What would you recommend on a 125i (128i for US) running KW V3s and front M3 bits (upper and lower arms).

No camber plates, since they are not TUV legal in Germany, however with my current setup and no M3 front arms my KW installer managed to get -1.7 camber in the front.

Looking for a track day setup not a daily.
Thanks for the post! For your setup we recommend the following:

Front & Rear: 18x8.5" ET45 with 235/40-18 tires
  • 5mm front spacers likely required for to clear KW suspension.
  • 245/35-18 tires can fit with 5mm front spacers and approximately -1.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
  • 255/35-18 tires can fit with 5mm front spacers and approximately -2.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.

Keep in mind that since you are using the M3 control arms, your negative camber is achieved by pushing the bottom of the strut outwards, rather than bringing the top inwards, so this may reduce your fender to tire clearance as a result. The 235/40-18 tires should still clear up front though without any rubbing.
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      10-12-2018, 05:19 PM   #38
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Thanks for the post! For your setup we recommend the following:

Front & Rear: 18x8.5" ET45 with 235/40-18 tires
  • 5mm front spacers likely required for to clear KW suspension.
  • 245/35-18 tires can fit with 5mm front spacers and approximately -1.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.
  • 255/35-18 tires can fit with 5mm front spacers and approximately -2.5 degrees of camber or more. Larger front spacers may be required for certain aftermarket suspensions, see below.

Keep in mind that since you are using the M3 control arms, your negative camber is achieved by pushing the bottom of the strut outwards, rather than bringing the top inwards, so this may reduce your fender to tire clearance as a result. The 235/40-18 tires should still clear up front though without any rubbing.
Thank you, i am still learning how camber and offsets work, but correct me if i am mistaken:

I can run 245/40/18s all round with ET40 and no spacers?

Currently on KW V3s and stock top mounts (pin removed) the KW dealer was able to squeeze out -1.7 camber front on non M arms.

Sadly, as i said, camber plates are not road legal here, and i would have to spend more to get the 1M front brace to conceal any aftermarket plates i install. So im looking for a "plug and play" setup that gives me no worries regarding rubbing or rolling.

You do not recommend 17x8.5's ET 40 wheels?
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      10-15-2018, 12:14 PM   #39
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Quote:
Originally Posted by Zombie_Head View Post
Thank you, i am still learning how camber and offsets work, but correct me if i am mistaken:

I can run 245/40/18s all round with ET40 and no spacers?

Currently on KW V3s and stock top mounts (pin removed) the KW dealer was able to squeeze out -1.7 camber front on non M arms.

Sadly, as i said, camber plates are not road legal here, and i would have to spend more to get the 1M front brace to conceal any aftermarket plates i install. So im looking for a "plug and play" setup that gives me no worries regarding rubbing or rolling.

You do not recommend 17x8.5's ET 40 wheels?
We don't typically recommend the 17x8.5" ET40 since it is a bit aggressive in the rear. However in your situation it makes sense. If you go with the 17x8.5" ET40, we recommend 235/40-17 for a trouble-free direct fit.

If you roll the rear fenders, you should be able to fit 245/40-18 tires all around with no issues.

Here is one of our older posts on this subject with a lot of great info (this was in response to someone wanting to run 255/40-17 tires on the 17x8.5" ET40 all around):

Quote:
Originally Posted by Eddy@ApexRaceParts View Post
Yes, camber plates are a must for what you're trying to do. The 17x8.5's have a 40mm offset. This is pretty close to ideal in the front with a meaty tire or r-compound (for strut tube clearance purposes) but it's not so ideal in the rear. In the front at that offset a 245/40/17 would fit cleanly with enough camber dialed in. You could even mount a 255/40/17 (a hair oversized on this heavy car, but it's commonly done by E36 and E46 guys on a budget).

The rear is a whole different animal. The 1 series easily has the worst rear fitment of any BMW I can think of. The rear has room for a lot of rubber, but it needs a high offset to fit, which makes it close to impossible to run a square setup without sacrificing tire width.

If you run a 245/40/17 rear tire on a 17x8.5" et40 wheel then you're running a wheel that is 12mm more aggressive then your stock wheels. The stock wheels are conservative, but when you put a meaty tire right out there at the fender lip with an offset like that, then you'll get rubbing. So a rear fender roll will be required. It's one thing to do this with a "show" or "street" oriented tire combo, but for track/autocross we are talking about wide tires that will be flexing to their limit under load and you'll neeed all the room you can get. The problem is you didn't want to roll your fenders you wanted a bolt on setup. If you installed 235's then you wouldn't have rubbing front or rear, but now you're not even coming close to the grip the car really needs. (I run 235/40's on a 2400lbs E30 M3 and I need more grip). Yes you could get around with that much rubber, but it's not even close to optimal.

With an aggressive fender roll the Nitto Sponsored bmwcca club racer is running our 17x8.5's with 255/40/17 NT-01's, so 255's can be run front and rear but it's not even close to being a direct bolt on fitment.

That being said if you want a simple bolt on setup. I would go the 245/40 on 17x8.5" route as all it requires is a rear fender roll. That fender roll allows for more rubber in the rear, which makes it one of the best bang for your buck mods.

As an example of the benefit of rolling: An E36 M3 can mount 245/40/17 on 8.5" square with no rubbing (but its really close in the back). Rolling is needed for 245's or anything wider on a 9" wheel. The guy who doesn't roll his car at all is forced to run the 245/8.5" combo, while the guy willing to roll can mount 255's front and rear on a wider rim. At the track you need that extra rubber (even more so on a heavy car). $100~ for a roll takes that restriction away.

18's are more expensive but an 18x8.5" et45 is available that can be run with 245/35/18's front and rear. a 2-3mm front spacer is needed for strut tube clearance when something like a Hoosier R6 is run in that size, but it's still rotatable which is important. The upside of the 18" squared setup is better sidewall support on a heavy car. The down side is limited availability of 245/35/18's and their price tag vs. the wide range of cheap 17's available.

17x9" square is not at all ideal on the 1 series because the rear fitment issue will be exaggerated. It works up front, but is a major compromise in the rear.
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      10-15-2018, 12:32 PM   #40
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
We don't typically recommend the 17x8.5" ET40 since it is a bit aggressive in the rear. However in your situation it makes sense. If you go with the 17x8.5" ET40, we recommend 235/40-17 for a trouble-free direct fit.

If you roll the rear fenders, you should be able to fit 245/40-18 tires all around with no issues.

Here is one of our older posts on this subject with a lot of great info (this was in response to someone wanting to run 255/40-17 tires on the 17x8.5" ET40 all around):
Thank you, makes sense. I think the 18x8.5 would better suit me for fun track days then, i am not looking for being competitive, the 235 vs 245 is something to decide.
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      10-07-2019, 05:12 PM   #41
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This 1M is track ready with a set of lightweight ARC-8's:

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