► APEX | ARC-8 Light Weight Track Wheels

Thanks for your interest in our ARC-8 wheels! This thread will no longer be updated, but the discussion continues on our combined Flow Formed wheel thread at: https://www.m3post.com/forums/showthread.php?p=25584923#post25584923

We hope to see you there!

Would these ever end up as 19" wheels?

Tomislav wrote

Would these ever end up as 19" wheels?

We are working on that, hopefully we will have them this coming year

Group buy?

I can't give out much information yet but keep an eye out on our Facebook, website, and the forum for an upcoming special very soon

very nice!

Here are some pics from our latest build:

Specs:
Hyper Black 18x9.5 ET22 front
Hyper Black 18x10.5 ET27 rear

How do these wheels hold up as daily driver wheels with occasional track usage?

Just curious if you've seen much issue with bending from potholes and rough roads.

I'm pretty careful with my wheels, but the roads around here seem to keep getting worse and worse.

Thank you for the photos Sal@AUTOcouture Great looking project!

wheatpaste wrote

How do these wheels hold up as daily driver wheels with occasional track usage?

Just curious if you've seen much issue with bending from potholes and rough roads.

I'm pretty careful with my wheels, but the roads around here seem to keep getting worse and worse.

We've had plenty of customers use our wheels for both street and track use, even those that use them strictly for track or race use. We have not had any issues with them used for either purposes, and many of our customers have been extremely happy with the performance provided by our ARC-8 wheels on the track, while helping them slightly increase gas mileage for daily use. With the proper tire sizes used with our wheels, you should have proper wheel protection from most potholes.

So the 18 x 10 ET25 will fit an stock ZCP E92 M3 (all 4 corners) without any spacers or modification needed? Also are the wheels hubcentric (do not require hubcentric rings)?

03///m3 wrote

So the 18 x 10 ET25 will fit an stock ZCP E92 M3 (all 4 corners) without any spacers or modification needed? Also are the wheels hubcentric (do not require hubcentric rings)?

The e9x M3 with OEM suspension can utilize the 18x10" ET25 ARC-8 with 275/35/18 street tires without the need of any spacers. If you are using an extreme summer tire, such as a Hankook RS3 or Dunlop DZII, you may have slight rubbing on the fender liner at full lock. The wheels are hubcentric so you will not need any hubcentric rings. Let us know if you have any other questions!

David@ApexRaceParts wrote

The e9x M3 with OEM suspension can utilize the 18x10" ET25 ARC-8 with 275/35/18 street tires without the need of any spacers. If you are using an extreme summer tire, such as a Hankook RS3 or Dunlop DZII, you may have slight rubbing on the fender liner at full lock. The wheels are hubcentric so you will not need any hubcentric rings. Let us know if you have any other questions!

OK. I would most likely using RS3's. So i should opt for the 9.5 width front wheels for absolutely no rubbing?

03///m3 wrote

OK. I would most likely using RS3's. So i should opt for the 9.5 width front wheels for absolutely no rubbing?

Yes, the 18x9.5" ET22 ARC-8's shouldn't rub even at full lock with 275/35/18 Hankook R-S3's because the 9.5" wheel will allow for 3mm more clearance on the outer edge of the rim and 9mm more clearance on the inner edge of the rim.

Any group buys?

jc05e46m3 wrote

Any group buys?

We are not currently hosting any group buys, and do not have any plans for one in the near future. There may be one at the start of the new year, but we have not decided on what would be included.

David@ApexRaceParts wrote

The e9x M3 with OEM suspension can utilize the 18x10" ET25 ARC-8 with 275/35/18 street tires without the need of any spacers. If you are using an extreme summer tire, such as a Hankook RS3 or Dunlop DZII, you may have slight rubbing on the fender liner at full lock. The wheels are hubcentric so you will not need any hubcentric rings. Let us know if you have any other questions!

I have this setup with the ZII's. no rubbing whatsoever.

MRM55 wrote

I have this setup with the ZII's. no rubbing whatsoever.

Thanks for the input, its great to hear you aren't having any issues with the Dunlops!

ApexRaceParts wrote

Concave 17" ARC-8's are in stock now!

What width do you recommend, the 10" or 10.5? What is the max amount of tire (squared) could I get on the 17" for autocross use only.

Thanks!

Millie wrote

What width do you recommend, the 10" or 10.5? What is the max amount of tire (squared) could I get on the 17" for autocross use only.

Thanks!

We would recommend the 17x10" ET25 with 275/40/17 tires. This car is running 275/40/17 Toyo R888's which are very meaty. No camber plates are required to run these wheels and tires, and no spacers are needed either.



You could potentially run the 17x10.5" wheels all around but it is a very difficult fit for the front. The 17" wheels sit much closer to the strut tube, so a thick spacer will be required. Additionally, camber plates will likely need to be maxed out to prevent rubbing on the fender. We do not recommend this setup, but it is possible with the correct amount of work put into the setup.

Feel free to ask us anything else you might have questions about!

ApexRaceParts wrote

We would recommend the 17x10" ET25 with 275/35/18 tires.

Don't you mean 275/40/17 tires? I don't think 275/35/18 would fit on 17" wheels.

You ship to Canada?

Millie wrote

Don't you mean 275/40/17 tires? I don't think 275/35/18 would fit on 17" wheels.

You ship to Canada?

Good catch fixed! Yes we can ship to Canada via UPS Standard International.

when will the next group buy be