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Old 10-18-2012, 03:41 PM   #1
David@ApexRaceParts
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APEX | ARC-8 Light Weight Track Wheels





APEX ARC-8 Wheels

We are proud to continue offering our timeless ARC-8 wheel. This new wheel addresses the concerns of more and more racers and track day enthusiasts: long term durability, fitment, and performance. With the increase of faster and heavier cars being used in racing, HPDEs, and spirited driving, the ARC-8 was designed and engineered to handle extreme abuse on track and street, offer a wide range of direct fitments, while still producing a lightweight wheel.

Visit our website to order



The Good Stuff



1. They Fit Everything
The ARC-8's wide range of widths, diameters, offsets and face profiles result in 26 unique BMW fitments ranging from 8.5" to 10.5" wide. Each wheel combines these features to meet the different brake caliper, strut, and fender clearance needs of each BMW model.

2. Factory Support
Like all our APEX wheels, The ARC-8 supports all OEM hardware like OEM Roundel center caps, wheel lugs, valve stems, and TPMS sensors. No centering rings are needed either, as all of our 5x120 BMW wheels use a 72.56mm center bore.

3. Brake Clearance
ARC-8 wheels properly clear all OEM brake calipers. Our wheels are targeted at the serious performance-minded owner. The spokes of the flatter faced ARC-8 were designed to clear big brake kits, making it a better choice for BBK equipped cars. The concave version of the wheel is the best option for cars with factory brake calipers.

4. Concavity
The ARC-8 wheel is available in two unique face profiles. The shallower face provides increased caliper clearance on narrow applications, while the deeper concave face reduces weight and creates a stunningly aggressive appearance on low offset and wide width applications. These two face profiles are available in all 17", 18" and 19" diameters.



Designed for the Performance Enthusiast

Light-weight
Flow-forming allows for a significant reduction in rotational mass by reducing barrel weight. This manufacturing technique allows our wheels 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. We design our spoke dimensions to help 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.

Chassis-Specific Fitments
Stretched rubber, narrow tires, and fender rubbing are not elements to look for in a competitive wheel/tire setup. All of our 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 Fitment Options
Most BMWs come with a staggered setup from the factory. 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 and consideration of tire costs. Most BMW chassis benefit from being able to fit both square and staggered setups with relative ease. 9.5" or 10"-wide 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 models for track use due to the significant increase in front grip and turn-in response. Some 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. Wheels up to 10.5" wide are available for rear fitment. These can be combined with 9" or 9.5" fronts for a bolt-on spacer-free staggered setup.

Open-Hub Center
Race wheels can't just be light, they need to function in a high performance environment. Unlike the narrow lug recesses of most other wheels, the ARC-8 wheel boasts a completely wide-open design that easily fits over-sized race lugs and beefy impact sockets. This allows for quick and easy wheel changes at the track, and as a bonus prevents chips and scratches from tools for those just running these wheels on the street.




The APEX Standard



1. FEA Optimization
Various design features were implemented to ensure that the ARC-8 wheel design was as light and durable as possible. We began with a strong one-piece design featuring an open hub center and reliefs in the mounting pad to remove weight between lug holes. The design was then run through Finite Element Analysis (FEA) to further optimize the spoke and barrel design. The result is a light weight wheel with extra strength in all the right places, while keeping weight to a minimum.

2. Always Flow Formed
All APEX wheels feature Flow-Formed construction tha utilizes rotary forging to produce a strong and lightweight barrel. The ARC-8 is no exception.

3. True JWL & VIA Certification
Strength needs to be certified. Our wheels were not simply FEA tested in a computer simulation, or in-house tested to an unregulated standard. We conduct real-world crush-testing and all of our wheels conform to Japan's JWL standard, as well as being 3rd-party tested by the VIA. All of our wheels carry a 690KG load rating.




Available Finishes

Note: Not all sizes are available in all finishes.



Face Profiles





Sizes, Weights, and Pricing

17" Sizes
18" Sizes
19" Sizes

Questions about tires, fenders, brakes, spacers, or suspension clearances?
Click here to get a personalized fitment recommendation from one of our experts.



On-Car Photos


Shown above: E46 M3 with 18x9.5 ET35 and 18x10.5 ET27 with 245/40/18 and 275/35/18 tires.


Shown above: E90 M3 with 17x10 ET25 with 275/40/17 tires all around.


Shown above: E92 M3 with 18x10.5 ET27 with 285/30/18 tires all around.

Check out our extensive collection of photos on our Flickr page. See more ARC-8 photos >>>

Tire Mounting and Balancing Service



Popular street and track tires are now available when you order APEX wheels. Add tires with your wheel order and get free tire mounting and balancing by our trusted enthusiast technicians. We use high-end, touchless equipment and inspect every wheel and tire combo thoroughly before they leave our warehouse. With our competitive tire pricing bundled with the savings of free mounting and balancing and convenience, it's the ultimate wheel & tire package.

*Note: Tires will only ship mounted to the wheels in your order, and can not be sold separately. Tires and wheels must be purchased in the same transaction. Tire-only orders will be cancelled and refunded.

Available Tire Brands:

Ordering and Contact Information
  • Hours: Monday - Friday, 9AM to 6PM PST
  • Shipping: All orders are shipped directly from us via UPS. Local pickup also available at our Livermore, CA Warehouse. (Map It)
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Old 10-19-2012, 07:32 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 10-26-2012, 01:43 PM   #3
Joe@ApexRaceParts
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17"-18" ARC-8's make for a great street or track wheel. We have many fitments and finishes in stock for your E46!



Please call, email, or pm us with any questions you may have.
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Old 11-05-2012, 06:45 PM   #4
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ARC-8's are in stock for your E46 in a variety of fitments that can be catered to you depending on your modifications and intended uses. This car is using our 17x9" ET42 wheels square with 245/40/17 Dunlop Star Spec tires.



Please call, email, or pm us with any questions you may have.
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Old 11-07-2012, 05:50 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, 05:19 PM   #6
Joe@ApexRaceParts
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ARC-8's are in stock for your E46 and E46 M3! This car is using our 18x9.5" ET22 and 18x10" ET25 ARC-8's in Hyper Silver.



Please call, pm, or email us with any questions you may have.
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Old 07-31-2013, 07:49 PM   #7
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Would you guys be able to refinish my wheels?
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Old 08-01-2013, 01:31 PM   #8
David@ApexRaceParts
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Originally Posted by Gheybe View Post
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, 08:10 PM   #9
AudiEtr
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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, 10:07 PM   #10
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 F&R Sway bars, M3 RTABs w/ Vorshlag Limiters, M3 Strut Brace

Aesthetics/Functionality: TFX Projector retrofit by lightwerkz, 20% Tint, OEM Aux Input, Clear corners, LED taillights, M3 Steering wheel, Black kidney grills, mobius dash cam
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Old 07-07-2014, 07:47 PM   #11
David@ApexRaceParts
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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 09-30-2014, 04:47 PM   #12
Vas
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Any more pics of that Imola Sedan?
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Old 05-11-2015, 12:21 PM   #13
APEXraceparts
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Another shot of the Valley Motorwerks E46 running 17x9" square ARC-8's.



Give us a call, we would be happy to walk you through street or track fitments that are available for your BMW.
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Old 05-15-2015, 01:13 PM   #14
APEXraceparts
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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 05-29-2015, 12:39 AM   #15
APEXraceparts
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Restock Alert!
We have thousands of wheels arriving in the next 30 days, including the following fitments for the E46 M3 and Non-M:
  • ARC-8 17x8.5" ET40
  • ARC-8 17x9.5" ET42
  • ARC-8 18x8.5" ET38
  • ARC-8 18x9.5" ET22
  • ARC-8 18x9.5" ET35
  • ARC-8 18x10" ET25
  • ARC-8 19x8.5" ET35
  • ARC-8 19x9.5" ET22
  • 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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Old 06-26-2015, 01:03 PM   #16
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For more information and pricing give us a call.

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Old 07-15-2015, 12:27 AM   #17
Luda
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Originally Posted by APEXraceparts View Post
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!
I'm looking to do this setup for my 330i. What brand/kind tires and tire sizes are used in this setup?
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Old 07-15-2015, 06:15 PM   #18
David@ApexRaceParts
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I'm looking to do this setup for my 330i. What brand/kind tires and tire sizes are used in this setup?
The tires used on that car is the Dunlop Direzza Star Specs in the 255/35/18 tire size on the 18x9" ET42 ARC-8's with a 5mm spacer in the front for strut clearance. Feel free to give us a call at 925.245.0773 if you have any specific questions regarding this fitment.
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Old 07-15-2015, 06:24 PM   #19
///Dreamer
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We're is the BMW hub cap? Does that come with the purchase or just use our own also do you guys ship to the UK thanks mates

Sent from my SCH-I545 using Tapatalk
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Old 08-06-2015, 06:56 PM   #20
APEXraceparts
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Originally Posted by ///Dreamer View Post
We're is the BMW hub cap? Does that come with the purchase or just use our own also do you guys ship to the UK thanks mates

Sent from my SCH-I545 using Tapatalk
We include our own APEX center caps (pictured below) with the purchase of our wheels. If the customer would like some OEM roundel center caps and do not already have some, they can purchase those through our site as well. Shipping to the UK is no problem!

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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