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      05-06-2014, 12:55 PM   #23
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Originally Posted by blitzkrieg989 View Post
Are those Hyper Black?
Yes they sure are! Here is another angle:

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      05-17-2014, 06:58 PM   #24
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Fitment question for 17" on non-M

For the Apex guys or anyone else with similar experience. I've read many of the threads here and would like feedback on a wheel/tire combo for my new-to-me '03 non-M Z4 3.0 Sport pkg.

I would like to go 255/40R17 square for the performance and tire rotation advantages. I am looking at Apex arc-8 17x9et30 on all four corners (I really want the "concave" style if I can make it work). I realize this is quite an aggressive fit on the front. Assuming NO plan for camber plates, strut pins removed and camber maxed (approx -1.5* ?), can I run this wheel up front with a minor fender roll? If no, how about if I shim to -2.0* ? Will -2.0* in front kill my tire wear for a daily/spirited driver? Lets assume tire will be a hefty width summer like RS3 or Direzza, but NOT as extreme as an r-compound.

Thanks in advance. I know the et42 will fit easily up front, but they aren't concave. Love this forum!
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      05-20-2014, 02:24 PM   #25
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Quote:
Originally Posted by aggie2000 View Post
For the Apex guys or anyone else with similar experience. I've read many of the threads here and would like feedback on a wheel/tire combo for my new-to-me '03 non-M Z4 3.0 Sport pkg.

I would like to go 255/40R17 square for the performance and tire rotation advantages. I am looking at Apex arc-8 17x9et30 on all four corners (I really want the "concave" style if I can make it work). I realize this is quite an aggressive fit on the front. Assuming NO plan for camber plates, strut pins removed and camber maxed (approx -1.5* ?), can I run this wheel up front with a minor fender roll? If no, how about if I shim to -2.0* ? Will -2.0* in front kill my tire wear for a daily/spirited driver? Lets assume tire will be a hefty width summer like RS3 or Direzza, but NOT as extreme as an r-compound.

Thanks in advance. I know the et42 will fit easily up front, but they aren't concave. Love this forum!
In order to fit the 17x9" ET30 with a 255/40/17 sized extreme summer tire (Hankook RS3 or Dunlop Direzza DZII) would require at least -2.5 degrees of camber in the front, which would require camber plates. This would not be at all possible with -1.5 degrees of camber and a minor front fender roll. The other options for you to get this to fit would be possibly using the 245/40/17 sized tire instead, which is more narrow, but would still require around -2 degrees of camber. While you can potentially reach this amount of negative camber by pulling the strut pins, maximizing your negative camber, and shimming the fronts, we know that shimmed struts bring things closer to the strut, which we don't full understand how that will effect fitment. Because of this, we still recommend camber plates to achieve the amount of camber, if you are okay with using the narrower 245/40/17 sized tire with it.

We understand that you want the concave wheel on your car, but without camber plates, it would be very difficult to achieve on the front. The amount of negative camber will indeed wear the inside of the tire more than the outside, but many customers that have -2 degrees or more camber would often swap their driver side and passenger side tires after a couple of months to have the tires wear more evenly.

The rear wheels and tires would be flush with the fender with these tires. The bead protector and part of the sidewall stuck out of the fender, but the actual corner of the tread was still within the fender on this setup when we tested it with a Nitto NT05 tire. This is aggressive already, and could require a fender roll to eliminate all rubbing. We'd say there would be a slight chance that this setup would have no rubbing without a fender roll, but it would be dependent on the ride height of the car and which particular tire you choose. A fender roll or added negative camber in the rear is recommended to make sure that you can avoid fender rubbing.

Here are some photos of the rear fitment:









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      06-05-2014, 04:22 PM   #26
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Originally Posted by David@ApexRaceParts View Post
Satin Black ARC-8s on this Z4M Roadster:



We have many sizes finishes of the ARC-8's in Z fitment in stock right now.

this roadster fights back at the coupe crew for sheer road presence !!
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      06-27-2014, 02:54 AM   #27
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Hi guys, quick question. Would 17x9 ET30 fit all around on Z4M with Stoptech's 355mm six piston kit without spacers? Im thinking that size for track wheels and same 255 width tires on all corners. Opinions?
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      06-27-2014, 05:16 PM   #28
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Quote:
Originally Posted by ga41 View Post
Hi guys, quick question. Would 17x9 ET30 fit all around on Z4M with Stoptech's 355mm six piston kit without spacers? Im thinking that size for track wheels and same 255 width tires on all corners. Opinions?
Unfortunately the 17x9" ET30 ARC-8's would require a 12mm spacer in order to clear the Stoptech ST-60 355mm BBK due to the concavity of the spokes and the size of the caliper, along with the location of the caliper due to wheel hub. The ST-40 caliper would clear (though a very tight fit) due to the smaller caliper size. The 18" wheels would be the better option for your car with the ST-60 BBK.
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      06-28-2014, 12:42 AM   #29
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Quote:
Originally Posted by David@ApexRaceParts View Post
Unfortunately the 17x9" ET30 ARC-8's would require a 12mm spacer in order to clear the Stoptech ST-60 355mm BBK due to the concavity of the spokes and the size of the caliper, along with the location of the caliper due to wheel hub. The ST-40 caliper would clear (though a very tight fit) due to the smaller caliper size. The 18" wheels would be the better option for your car with the ST-60 BBK.
Damn. 17" tires are much cheaper than 18"s! Would you say the 18x9 ET30 then? Which is same as the OEM rears?
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      06-30-2014, 03:06 PM   #30
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Quote:
Originally Posted by ga41 View Post
Damn. 17" tires are much cheaper than 18"s! Would you say the 18x9 ET30 then? Which is same as the OEM rears?
The 18x9" ET31 EC-7 would be an option if you wanted to stick with the 9" width. However, the ARC-8's do not come in that fitment, and if you preferred the ARC-8 style, the wheel to use would be the 18x9.5" ET35 to have a concave wheel face.
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      10-12-2014, 05:25 PM   #31
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Quote:
Originally Posted by David@ApexRaceParts
Satin Black ARC-8s on this Z4M Roadster:



We have many sizes finishes of the ARC-8's in Z fitment in stock right now.
PM. sent
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      04-24-2015, 12:03 PM   #32
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I placed an order for 18x8.5 et38 and 18x9.5 et35 in hyperblack in 4/8....was curious if those were in stock?
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      04-24-2015, 01:49 PM   #33
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Quote:
Originally Posted by WickedNy View Post
I placed an order for 18x8.5 et38 and 18x9.5 et35 in hyperblack in 4/8....was curious if those were in stock?
I have PM'd you a response.
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      05-28-2015, 11:39 PM   #34
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Restock Alert!
We have thousands of wheels arriving in the next 30 days, including the following fitments for the Z4 M and Non-M:
  • ARC-8 17x8.5" ET40
  • ARC-8 17x9" ET42
  • ARC-8 18x8.5" ET38
  • ARC-8 18x9.5" ET22
  • ARC-8 18x9.5" ET35
  • ARC-8 18x10" ET25
  • ARC-8 19x9.5" ET35
  • ARC-8 19x10" ET25
  • ARC-8 19x10.5" ET27
Contact us today to secure your set!
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      06-22-2015, 11:40 AM   #35
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ARC-8's are in stock for your Z4M and Z4 in multiple staggered and square fitments!



Please call, email, or pm us with any questions you may have.
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      06-26-2015, 12:04 PM   #36
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For more information and pricing give us a call.

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      08-06-2015, 05:49 PM   #37
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Check out these custom guards red APEX ARC-8's!



Please contact us with any questions that you may have, we have wheel experts ready for your calls, emails & PM's.
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      08-14-2015, 07:31 PM   #38
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Get your Z4M track ready with a set of ARC-8's!



This car is running 18x9.5" ET35 and 18x10" ET25 Anthracite ARC-8's with a 5mm wheel spacer in the front for the tire to clear the strut. 275/35/18 Continental slicks are installed on the wheels and the car is sitting on Ground Control coilovers.

Please let us know if you have any questions about fitment and we'd be happy to help you out!
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      11-19-2015, 04:25 PM   #39
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Quote:
Originally Posted by ApexRaceParts View Post
Get your Z4M track ready with a set of ARC-8's!



This car is running 18x9.5" ET35 and 18x10" ET25 Anthracite ARC-8's with a 5mm wheel spacer in the front for the tire to clear the strut. 275/35/18 Continental slicks are installed on the wheels and the car is sitting on Ground Control coilovers.

Please let us know if you have any questions about fitment and we'd be happy to help you out!
Would the offsets still be the same for 19" setup. What is the finish on the rims.

I plan on running Michelin pss and fortune auto 500 series coilovers with swift springs.

Thank you
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      11-19-2015, 05:27 PM   #40
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Originally Posted by Bi4kia View Post
Would the offsets still be the same for 19" setup. What is the finish on the rims.

I plan on running Michelin pss and fortune auto 500 series coilovers with swift springs.

Thank you
The finish is Anthracite.

The fitment that you quoted is very aggressive up front, and is used frequently on track oriented cars looking for more front end grip. The 18x9.5 et35 application used up front requires camber plates with a decent amount of negative camber dialed in. This allows the wider wheel and tire to clear the front fenders.

We do not typically recommend 19" applications for the Z4 M, especially if you are tracking the car. If your Z4 M is strictly for street use, and you prefer the look of 19" wheels, then the bolt-on fitment would be 19x8.5 et35 front and 19x9.5 et22 rear. The 19x10 et25 can also be used in the rear, but may require a slight fender roll depending on the tire size, brand and ride height. Tire sizes would be 235/35/19 front and 275/30/19 rear respectively. Here is a photo:



If you wanted to run concave front wheels like the white Z4 M in your quote, then you would use our 19x9.5 et35 application up front, paired with either 245/35/19 or 255/35/19 tires. Like his 18" setup, you too would need camber plates to dial in enough negative camber to allow the front wheel and tires to fit without rubbing.
- Ryan
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      11-19-2015, 10:33 PM   #41
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Quote:
Originally Posted by ApexRaceParts View Post
The finish is Anthracite.

The fitment that you quoted is very aggressive up front, and is used frequently on track oriented cars looking for more front end grip. The 18x9.5 et35 application used up front requires camber plates with a decent amount of negative camber dialed in. This allows the wider wheel and tire to clear the front fenders.

We do not typically recommend 19" applications for the Z4 M, especially if you are tracking the car. If your Z4 M is strictly for street use, and you prefer the look of 19" wheels, then the bolt-on fitment would be 19x8.5 et35 front and 19x9.5 et22 rear. The 19x10 et25 can also be used in the rear, but may require a slight fender roll depending on the tire size, brand and ride height. Tire sizes would be 235/35/19 front and 275/30/19 rear respectively. Here is a photo:



If you wanted to run concave front wheels like the white Z4 M in your quote, then you would use our 19x9.5 et35 application up front, paired with either 245/35/19 or 255/35/19 tires. Like his 18" setup, you too would need camber plates to dial in enough negative camber to allow the front wheel and tires to fit without rubbing.
- Ryan
I will be using camber arms back and plates front. Now my issue is 18" vs 19". Just when I thought I had it all figured out. I like the looks of the 19" but one can't refute the practicality of the 18". Potholes in Ontario.

I don't plan on tracking the car.
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      05-03-2016, 06:23 PM   #42
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Send us a PM, email, or give us a call if you have any questions regarding the perfect fitment for your car, or if you'd like to check if we have a particular finish or size in stock.
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      08-08-2016, 05:54 PM   #43
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ARC-8's are in stock for your Z4 in multiple fitments allowing you to use a variety of tire sizes depending on your intended uses and modifications installed on your car.



Please call, email, or pm us with any questions you may have.
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      08-10-2016, 06:28 PM   #44
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This car is using our concave 17" wheels in 17x9.5" ET35 square with a 255/40/17 Nitto NT01 tire.



Please call, pm, or email us with any questions you may have!
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