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Old 10-18-2012, 02:41 PM   #1
David@ApexRaceParts
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APEX | ARC-8 Light Weight Track Wheels

APEX ARC-8 Wheels

APEX ARC-8 wheels were designed to meet the specification needs of HPDE, race, and autocross drivers, while exceeding the requirements for every day street use. This makes them the perfect cost effective, dual duty wheel.


APEX ARC-8 in Hyper Silver


Meeting the Performance Enthusiast's requirements:

Light-weight: Flow-forming allows for a significant reduction in rotational mass by reducing barrel weight. This manufacturing technique allows the ARC-8 wheel to be almost as light as a traditional forged wheel, but without the significant increase in price.

Strength: Track duty requires a wheel that can handle the punishment of high lateral G's, hitting berms, and every once in a while a small off track excursion. Spoke and barrel design are a major factor in wheel strength. The flow-forming technique uses high pressure disks/rollers to roll the wheel's barrel into its final shape. This gives the barrel the same strength properties as a forged wheel, since monoblock wheels go through a similar step to form their barrels. The ARC-8's mesh design helps evenly distribute loads from the barrel to the center of the wheel. The lack of a front lip, and spokes directly connecting to the edge of the wheel, also add increased strength to the outer lip of the wheel. Although a front lip can reduce weight, it can also make the wheel much more prone to bending, and this was an important factor when developing the wheel.

Once a design is selected, it needs to be tested and certified for strength. The ARC-8 wheels were not just FEA tested in a computer simulation, or in house tested to an unregulated standard. They follow Japans JWL standard, and are 3rd party tested there by the VIA in Japan. All 18" ARC-8 wheels have a 690KG load rating.

Proper tire fitment: Stretched rubber, narrow tires, and fender rubbing are not elements to look for in a competitive wheel/tire setup. The ARC-8 wheels were designed with offsets that allow for proper fitment of extreme summer, and r-compound tires without the need for spacers or fender rolling. This means keeping the tire under the fender, and away from suspension components. Track oriented wheel widths are also important as they provide proper sidewall support under hard cornering. Too much rubber for a wheel results in excessive sidewall deflection, which translates into sloppy and delayed turning response.

Multiple fitments: Most BMW's come with a staggered setup. Some choose to keep their car this way, while others like to switch out for an easy to rotate, square/neutral setup. This is generally based on driver's preference in addition to costs. The E46 M3 benefits from being able to fit both square and staggered setups with relative ease. 9.5" or 10" square setups are great for budget minded enthusiasts who want to extend their tires life by rotating between events, in addition to preferring the feel of a square setup. Square setups are popular on all 3 series models for track use due to the significant increase in front grip and turn in response. Some E46 M3 owners comment that due to the extra power of their cars, a square setup will lean towards oversteer. For those who prefer more rubber in the rear, a staggered setup is the way to go. 10" and 10.5" wheels are available for rear fitment. These can be combined with 9.5" or 10" fronts for a bolt-on spacer free staggered setup.

BBK clearance: Many owners install Big Brake kits on their cars. Having an 18" wheel that can clear large calipers is a must. Due to the low offset nature of the E46 M3, there are no clearance issues with the concave spokes of the ARC-8 wheel. Barrel clearance was increased during the design phase to accommodate StopTech's 380mm kit. The only kit that poses an issue at this time is the 380mm Brembo setup.


Meeting the needs of Daily/Street use:

Aesthetic design: Although the ARC-8 put function over form when meeting the above requirements, there is no denying that concave mesh wheels look at home on a BMW.

Paint finishes: All the wheel have a multi-coat painted finish including a full clear coat except for the Satin finish which does not have a clear (that would have made it gloss black). To give owners more options the wheels are offered in 4 different finishes. Hyper Silver, Hyper Black, Anthracite, and Satin Black. Not everyone wants their track day wheels to be grey.

Abuse of street use: The world is full of pot holes and random things to run over. APEX wheels have an excellent history of handling abuse. To date we've only had one wheel with a minor bend and another with a hair line crack on the inner barrel lip. Both these wheels came from the same dedicated race car, and the bent wheel is still out there racing today.

Multiple fitments: Due to the more conservative nature of street use, the ARC-8 wheel is also available in sizes that can fit more street oriented rubber, at offsets that are an easier fit. Wider more aggressive wheels can be used by those who like a more flush/filled out look. The choice is yours.

Certification: The race track has no wheel strength requirements, but the street does. Sadly the USA has very lenient/minimal regulations of wheel strength, unlike like Japan and Germany. APEX wheels are independently tested by the Vehicle Inspection Association of Japan (VIA) to the JWL standard. Wheels tested to the JWL standard require all wheels on the road to meet specific load rating requirements based on the bolt pattern, and dimensions of the wheel, the application/vehicle model has nothing to do with it. In comparison, wheels tested to the SAE standard in the USA can pick their own load rating, which can be as low as they want. This defeats the purpose of the test, as a wheel manufacturer can choose to underrate their wheels in order to reduce wheel weight. Wheels claiming JWL testing, but no 3rd party verification are prone to certifying untested/unproven wheels. VIA certification can not be done in house. It requires sending wheels/tires to japan for crush testing. Sadly a large number of vendors claim their wheels are VIA, JWL and even TUV certified, when in fact they were never tested by those organizations at all, and in some cases don't even meet the standard requirements of those tests. For this reason the certificate numbers for the ARC-8 wheels have been listed below. Self regulate the market, and ask all vendors to back up their claims. If they were tested, then they'll have the registration numbers.


Available Sizes, Weights, and Pricing:
17x8.5" ET20 - 16.50lbs - $259
17x8.5" ET40 - 17.20lbs - $249
17x9.0" ET30 - 16.50lbs - $264
17x9.0" ET42 - 17.20lbs - $259
17x9.5" ET35 - 16.95lbs - $269
17x10" ET25 - 18.45lbs - $284
17x10.5" ET27 - 18.95lbs - $299
18x8.5" ET38 - 18.45lbs - $289
18x8.5" ET45 - 18.20lbs - $289
18x9.0" ET42 - 18.65lbs - $299
18x9.5" ET62 - 18.20lbs - $314
18x9.5" ET35 - 18.85lbs - $314
18x9.5" ET22 - 19.20lbs - $314
18x10" ET25 - 19.95lbs - $324
18x10.5" ET27 - 20.45lbs - $344

Available Finishes
  • Hyper Silver
  • Hyper Black
  • Anthracite
  • Satin Black

Warranty Summary:
2 year Structural, 1 year limited finish warranty guarantees wheels will be free from defects in materials, workmanship and paint finish under normal and reasonable use.



Please click the images for a higher resolution version.

Ordering and Contact
  • Phone: Call (888) 499-9135 EXT. #1 for phone orders.
  • Payment: Credit and Debit Cards: Visa, Mastercard, AMEX, Discover, PayPal. Bank Wire Transfers are also available. Contact us to use a wire transfer for payment on your order.
  • Tax: California customers will be charged 8.75% CA sales tax.
  • Shipping: APEX ships all orders with UPS.
  • APEX Hours:
    Monday thru Friday: 9AM to 6PM PST
    Saturday and Sunday: Closed
  • Warehouse and local pickup: The APEX warehouse is at 7888 Marathon Drive, Unit A, Livermore, CA, 94550 (Map It), (888) 499-9135 EXT. #2. This is where you pick up local orders.
  • Service and Installation: Apex Performance Services - Dublin: 6443 Golden Gate Drive, Dublin, CA 94568 (Map It), (888) 499-9135 EXT. #3
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Last edited by David@ApexRaceParts; 08-04-2014 at 10:57 PM.
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Old 10-19-2012, 06:32 PM   #2
Joe@ApexRaceParts
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ARC-8's look great on this modified E46! He is using our 18x9" ET42 Satin Black wheels with 245/40/18 tires.



Please call, email, or pm us with any question you may have.
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Old 07-31-2013, 06:49 PM   #3
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Would you guys be able to refinish my wheels?
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Old 08-01-2013, 12:31 PM   #4
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Would you guys be able to refinish my wheels?
We do not offer any refinishing services at this time unfortunately. We have had customers take wheels to a local paint shop to get them refinished in the past to custom colors, perhaps that could be an option for you?
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Old 12-01-2013, 07:10 PM   #5
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The ARC-8's are only 16lbs in 17x9.5 et35?
Ordering a set tomorrow!

Edit: Ordered!!! Ship out Wed!
Ordered a fresh set of pilot sports to wrap them with too!
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Old 12-01-2013, 09:07 PM   #6
bimmernate
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I'll go ahead and post a pic of my setup here since I love the wheels so much.

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2003 330i ZHP 6MT
Performance: Koni Sport Struts/Shocks, Eibach Pro-Kit, 17x9 Apex ARC-8, TMS Sway bars, M3 Strut Brace

Aesthetics/Functionality: TSX Projector retrofit, 20% Tint, OEM Aux Input, Clear corners, LED taillights, M3 Steering wheel, Black kidney grills
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Old 04-16-2014, 05:57 PM   #7
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This e46 has 17x9" ET42 Hyper Silver ARC-8's square with 245/40/17 street tires.



Give us a call if you have any questions about fitment.
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Old 04-25-2014, 05:19 PM   #8
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Hyper Black ARC-8's on this Imola Red E46 M3 gives it a menacing look.



If you have any questions regarding fitment or availability, give us a call at 888.499.9135 or send us a PM.
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Old 04-28-2014, 06:03 PM   #9
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Hyper Black ARC-8's look perfect on a TiAg M3:



Feel free to PM, e-mail, or call us with any questions regarding fitment.
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Old 05-09-2014, 07:04 PM   #10
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An example of the e46 M3 on our Anthracite ARC-8's:



We've got a few sets in stock, give us a call if you're interested.
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Old 05-15-2014, 07:33 PM   #11
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Here's an e46 sporting our ARC-8's in Eau Rouge at Spa:



Let us know if you had any questions about fitment, we'll be glad to help.
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Old 06-13-2014, 07:36 PM   #12
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Hyper Silver ARC-8's on this Black M3:



Feel free to give us a call if you have any questions regarding fitment or availability.
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Old 07-07-2014, 06:47 PM   #13
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Silver Grey E46 M3 Hyper Silver 18x9.5" ET35 squared setup with 12mm spacer in the rear, using 265/35/18 Hankook R-S3 tires. The most popular track fitment for the E46 M3!



Feel free to give us a call if you have any questions regarding fitment or availability.
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Old 07-15-2014, 03:16 PM   #14
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Originally Posted by bimmernate View Post
I'll go ahead and post a pic of my setup here since I love the wheels so much.

Looks fantastic Nate We are happy to hear that your are enjoying them!
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Old 07-29-2014, 05:28 PM   #15
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Here is an awesome green E46 M3 with ARC-8's:



E46 M3 fitments are in stock. Let us know if we can assist you with anything!
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Old 08-07-2014, 05:50 PM   #16
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Check out this red E46 on 18x9" square ARC-8's in Hyper Silver:



Please feel free to contact us for any information you may need!
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Old 08-08-2014, 07:58 PM   #17
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Hyper Silver 18x9" ARC-8's on this E46 sedan.



Please give us a call for fitment advice or any other questions.
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Old 08-11-2014, 07:22 PM   #18
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Jet Black E46 M3 on Hyper Silver ARC-8's in it's natural habitat:



Feel free to contact us via e-mail, phone, or PM if you had any questions.
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Old 08-15-2014, 06:59 PM   #19
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ARC-8s and e46 M3s go hand in hand. Order yours today!

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Old 08-18-2014, 04:42 PM   #20
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Concave 17" ARC-8's are in stock for your E46! This car is using Anthracite 17x10" ET25 ARC-8's with 275/40/17 Toyo R888 tires. This setup requires about -3.5 degrees of camber but the 17x9.5" ET35 option has the same look with much less required camber:



Please contact us for any questions that you might have!
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