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Old 10-18-2012, 03:35 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 - E46 Fitment
17x9.0" ET30 - 16.50lbs - $264
17x9.0" ET42 - 17.20lbs - $259 - E46 Fitment
17x9.5" ET35 - 16.95lbs - $269 - E46 M3 Fitment
17x10" ET25 - 18.45lbs - $284 - E46 M3 Fitment
17x10.5" ET27 - 18.95lbs - $299 - E46 M3 Fitment
18x8.5" ET38 - 18.45lbs - $289 - E46/ E46 M3 Fitment
18x8.5" ET45 - 18.20lbs - $289
18x9.0" ET42 - 18.65lbs - $299 - E46 Fitment
18x9.5" ET62 - 18.20lbs - $314
18x9.5" ET35 - 18.85lbs - $314 - E46 M3 Fitment
18x9.5" ET22 - 19.20lbs - $314 - E46 M3 Fitment
18x10" ET25 - 19.95lbs - $324 - E46 M3 Fitment
18x10.5" ET27 - 20.45lbs - $344 - E46 M3 Fitment

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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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 11-06-2012, 07:46 PM   #3
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Beautiful wheels, any chance for another group buy?

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Old 11-07-2012, 12:21 PM   #4
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Originally Posted by MoMurderah View Post
Beautiful wheels, any chance for another group buy?

Sent from my SGH-T999 using Bimmer App
We'll be announcing a group buy at the end of the year!
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Old 11-07-2012, 04:50 PM   #5
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ARC-8's are in stock for your E46 3 series in multiple 17" and 18" wheel fitments!



Please call, pm, or email us with any questions you may have.
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Old 11-13-2012, 06:06 PM   #6
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Verts rock them pretty well too!
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Old 11-14-2012, 11:37 PM   #7
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Verts rock them pretty well too!
Are you considering 9.5 all around now?
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Old 11-16-2012, 07:04 PM   #8
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Are you considering 9.5 all around now?
Doubt it. Gonna refinish these in silver sooner or later.
Gonna stop modding this one. Time for a new ride.
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Old 11-16-2012, 08:17 PM   #9
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Doubt it. Gonna refinish these in silver sooner or later.
Gonna stop modding this one. Time for a new ride.
An M or something completely different.
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Old 06-28-2013, 04:28 PM   #10
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An M or something completely different.
M3. Still debating E46 or E90. Depends on the next few months.
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Old 07-29-2013, 05:48 PM   #11
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APEX | ARC-8 Light Weight Track Wheels

i think your inbox is full.

please pm me. what 17" do you have in stock?
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Old 07-31-2013, 06:49 PM   #12
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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!
Quote:
Originally Posted by LITZBLITZ View Post
i think your inbox is full.

please pm me. what 17" do you have in stock?
PM on the way!
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Old 08-24-2013, 08:48 AM   #13
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David, do you see APEX running a group buy in the future?
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Old 08-26-2013, 04:34 PM   #14
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David, do you see APEX running a group buy in the future?
Not to worry, there will be more APEX group buys in the future! We are expecting to have one at the beginning of 2014 so stay tuned!
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Old 11-07-2013, 07:15 PM   #15
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2013 New Year group buy a possibility?
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Old 11-07-2013, 07:17 PM   #16
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APEX | ARC-8 Light Weight Track Wheels

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2013 New Year group buy a possibility?
agreeed!!!
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Old 11-11-2013, 05:10 PM   #17
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2013 New Year group buy a possibility?
We are definitely looking to do a group buy at the beginning of the new year. However, we have not decided which sizes and models will be included yet, so keep an eye out after we make the group buy announcements in a couple of months!
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Old 11-11-2013, 07:13 PM   #18
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We are definitely looking to do a group buy at the beginning of the new year. However, we have not decided which sizes and models will be included yet, so keep an eye out after we make the group buy announcements in a couple of months!
Fair enough...Thanks David!
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Old 12-05-2013, 10:54 PM   #19
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2013 New Year group buy a possibility?
Yes please!!!
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Old 12-05-2013, 11:17 PM   #20
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Re: APEX | ARC-8 Light Weight Track Wheels

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2013 New Year group buy a possibility?
You can count me in, really want some EC-7s.
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