APEX 18" ARC-8 Wheels

APEX 18" ARC-8 Wheels

191

Pledged

349

Interested
CLOSED
The deal ended on 03/16

Availability: In stock

From: $1,156.00

To: $2,076.57

Price as configured: $0.00



Details

Details

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  Introduction   ARC-8 Design   Contact APEX  
 
  Dates & Details   ARC-8 Manufacturing   On-Car Fitments  
Introduction

Get ready for track season

We’ve been hosting this deal right before track & race season for 6 years now. This time last year we had 154 buyers, which was enough to easily earn the deepest discount. This year we will not be offering another Group Buy until much later in the year, so don’t miss out on your best chance to get these wheels.

Say hello to Matte Bronze

We are excited to offer Matte Bronze as a new special finish option for select sizes. It was the most requested in our surveys, so we’re giving the community a chance to get what they want. We can only produce Matte Bronze if we get enough demand per size, so we encourage anyone interested to also choose a standard finish option as a backup.

This new finish will require an extra 45 days to fulfill vs. standard finishes (ETA 5/16/17). If you need wheels shortly after the Group Buy concludes to meet a scheduled track/race weekend or car show, we suggest selecting one of our standard finishes.

Important Dates & Details
Group Buy Milestones
Payment Stage Opens Payment Stage Closes Ships By
3/9/2017 12:00AM PST 3/16/2017 11:59PM PST Standard Finishes: 3/31/2017
Matte Bronze: +45 days
ARC-8 Finishes
Hyper Silver Hyper Black Anthracite Satin Black NEW!
Matte Bronze
ARC-8 Face Profiles
Profile 1 Profile 3
ARC-8 Specifications
Diameter Bolt Pattern Center Bore
18" 5x120mm 72.56mm
ARC-8 Sizes, Offsets & Finishes Available
Width Offset Weight Available Finishes Face Profile MSRP
8.5" ET38 18.4 lbs 1 $289
9.0" ET30 ~18.3 lbs 3 $309
ET42 18.6 lbs 1 $299
9.5" ET22 19.2 lbs 3 $314
ET35 18.8 lbs 3 $314
10.0" ET25 19.9 lbs 3 $324
10.5" ET27 20.5 lbs 3 $344
ARC-8 18x8.5" ET38   ARC-8 18x9.0" ET30
Width 8.5"   Width 9.0"
Offset ET38   Offset ET30
Weight 18.4 lbs   Weight 18.3 lbs
Available Finishes   Available Finishes
Face Profile 1   Face Profile 3
MSRP $289   MSRP $309
 
ARC-8 18x9.0" ET42   ARC-8 18x9.5" ET22
Width 9.0"   Width 9.5"
Offset ET42   Offset ET22
Weight 18.6 lbs   Weight 19.2 lbs
Available Finishes   Available Finishes
Face Profile 1   Face Profile 3
MSRP $299   MSRP $314
 
ARC-8 18x9.5" ET35   ARC-8 18x10.0" ET25
Width 9.5"   Width 10.0"
Offset ET35   Offset ET25
Weight 18.8 lbs   Weight 19.9 lbs
Available Finishes   Available Finishes
Face Profile 3   Face Profile 3
MSRP $314   MSRP $324
 
ARC-8 18x10.5" ET27  
Width 10.5"  
Offset ET27  
Weight 20.5 lbs  
Available Finishes  
Face Profile 3  
MSRP $344  
ARC-8 Design

Fit Matters
The right solution for every application

An optimized car setup begins with the perfect wheel and tire fitment. Without model-specific attention to each wheel’s specifications, maximum performance is compromised. Each size was selected to find the right balance between a clean fit and the most grip possible. The ARC-8's wide range of widths, diameters, offsets and face profiles result in 24 unique 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. Most vehicle models have options for wheels that range from direct-fit to aggressive for specialty applications. Daily drivers and professional racers don't have the same needs, so why should they be forced to buy the same exact fitment?

Face Profile
One design, many levels of beauty

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.

Spokes
More than just a pretty face

The spokes of the ARC-8 were designed to be robust where they need to be and extra lightweight where they can be. The split "Y" spokes were carefully evaluated from every aspect to ensure light weight and remarkable strength. The lack of a deep front lip and spokes that connect directly to the barrel's lip create a rigid wheel with even load distribution. These features help reduce one of the most common concerns with aftermarket wheels — bending. Beauty follows function with this extremely popular design, as it adapts perfectly to both flat and concave versions.

Hub Center
Form follows function

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.

Hub Centric
No rings or adapters here

All ARC-8 wheels are purpose built for select vehicle applications, and centering rings are never required for any BMW application. All 5x120mm bolt pattern wheels feature a direct-fit 72.56mm center bore.

Center Cap
A factory fit and finish

We don't reuse one cap design for all our wheels. Every ARC-8 wheel is designed to work with factory center caps. You can easily replace APEX center caps with OEM roundels for a clean factory look. The ARC-8 wheel will come with either our carbon-look center cap or our redesigned, Gloss Black center cap that mimics the size and shape of a BMW factory center cap.

Brake Clearance - Spokes
Spokes that work for you

If the spokes of a wheel don't clear your brake calipers, then the wheel can't turn. We made sure the spokes on all 18" APEX wheels properly clear all OEM brake calipers, spacer free. Because of the large variation in clearance needs, APEX produced the ARC-8 wheel using two unique face profiles. When the correct profile is used for each specific vehicle application, most Big Brake Kits fit behind our 18" spokes, although a few applications will need a thin spacer due to the added width of aftermarket calipers. The flatter face profile offers maximum caliper clearance for high offset, narrow wheels, and older vehicles with Big Brake Kits. The deeper 18" concave face still has enough room to clear wider aftermarket Big Brake Kits on almost all applications, as we designed the spoke profile to require a thin spacer only in a few rare situations. Contact us to confirm brake clearances for your specific application.

Brake Clearance - Barrel
A lot of room in a tight space

Spoke clearance is only half the problem. The barrel opening on a wheel also needs to be big enough to clear the sides of your caliper and rotor. Not all 18" wheels are made equal though. APEX designed the ARC-8's barrel to open to it's largest diameter as early as possible. The sooner this happens and the wider it opens, the larger the brake kit you can fit. This is vital on 18" applications because without enough clearance, most larger diameter brake kits will almost certainly not fit behind typical wheels. Most 18" wheels on the market make aesthetic compromises to their design that consumers wouldn't even know have a major negative impact on barrel clearance. Those wheels may work with smaller stock brakes, or smaller diameter Big Brake Kits, but the larger kits will pose a major problem. We 2D modeled most Big Brake Kits available in Solidworks and altered the wheel design to clear as many kits as possible. Our 18" ARC-8 wheels can clear some 380mm kits, and everything smaller clears the barrel with ease. Contact us to confirm brake clearances for your specific application.

Wheel Hardware
Original or Aftermarket, it all works

The ARC-8 wheel can be used with all OEM and aftermarket mounting hardware with a 60° tapered seat. Lug bolts, wheel locks, and stud conversion kits all work perfectly. The ARC-8 wheel also accepts wheel spacers without issue. The shallow rear chamfer allows the wheel to remain hub centric even when 5mm flat spacers are used. The chamfer is deep enough to clear the chamfered lip found on some aftermarket spacers that would typically cause improper seating of the wheel and, therefore, wheel vibration.

TPMS Sensors
They all fit

TPMS sensors, which monitor tire pressure, are one piece of technology that can't be compromised. The attention to OEM compatibility on the ARC-8 wheel doesn't end with center caps. All APEX wheels accept OEM and aftermarket equivalent BMW TPMS sensors, and any standard sized metal or rubber valve stem.

ARC-8 Manufacturing

Flow Forming
Benefits of forging, without the pain

All APEX wheels, including the ARC-8 wheel, are produced using the Flow-Forming technique. This process significantly reduces weight in the barrel, which has the greatest impact on rotational mass. During the manufacturing process, rollers apply high pressure to the inner barrel, compressing the aluminum into it's final shape. This effectively eliminates porosity and aligns the grain structure of the metal, which increases tensile strength. The end result of the Flow-Forming process is a lightweight and extremely strong barrel that equals that of a traditional forged wheel at a fraction of the cost.

Testing & Certifications
We break a lot of wheels

Computer simulated stress tests are no match for real world testing when designing a light-weight wheel that will see extreme loads. All APEX wheels are crush and load tested to exceed JWL standards and those results are independently tested in Japan by the 3rd party government agency known as the VIA. Countless wheel companies falsely claim they are tested and certified by the VIA, and so they lack the certificates to prove it. We test and certify each and every design, diameter, width, and offset, separately. We publicly list all our VIA registration numbers which are on file with the VIA for confirmation. Don't trust brands that claim testing, but can't provide verifiable registration numbers.

Weight & Strength Optimization
It’s all in the details

Various design features were implemented to ensure that the ARC-8 wheel design was light, but had even more strength to handle the abuses experienced in endurance racing. We began with a beefy, multi-spoke, one-piece design. We built and test this wheel with even higher load rating requirements. We added reliefs in the mounting pad to remove weight between lug holes, where we could safely save weight. The design was then run through Finite Element Analysis (FEA) to further optimize the spoke and barrel design. The result is a lightweight wheel with extra strength in all the right places. Use the ARC-8 with confidence is over built for both street and track.

Finishes
Because being faster is just not enough

The ARC-8 wheel is available in multiple finishes. All APEX wheels are finished using a comprehensive multi-stage liquid paint system over a powder coated base. Often overlooked, painted or powder coated lug hole seats can cause hardware to loosen or begin the spread of paint chipping to more visible sections. The coating process of the ARC-8 leaves lug holes, center bores, and mounting pads untouched which ensures proper fit and torque values.

Warranty
A wheel you can depend on

All APEX wheels are backed by a 2 year structural warranty and a 1 year finish warranty to the original. This warranty guarantees that all APEX wheels will be free from defects in materials, workmanship, and paint finish under normal and reasonable use.

Vendor Contact Information - APEX Race Parts

Have questions about this product? Contact the knowledgeable product experts at APEX Race Parts.

On-Car Fitments
E36 M3, Non-M, Ti
Wheels Tires Suspension Modifications
Anthracite ARC-8 18x9.5" ET35 245/35/18 Hankook V12 Bilstein PSS9s
-2° camber all around
5mm front spacers
E46 Non-M
Wheels Tires Suspension Modifications
Hyper Silver ARC-8 18x9.5" ET35 255/35/18 Michelin PSS AST 4100 Coilovers
Vorshlag Camber Plates
Front Camber: -2.5°
Rear Camber: Maximize rear camber using factory bits (approx -1.8°)
Rear fenders rolled and shaved
Wheels Tires Suspension Modifications
Hyper Silver ARC-8 18x8.5" ET38 245/35/18 Continental DW Broadway Static Coilovers N/A
E46 M3
Wheels Tires Suspension Modifications
Hyper Silver ARC-8
Front: 18x9.5" ET35
18x10.5" ET27
Hankook V12
Front: 245/40/18
Rear: 275/35/18
ST Coilovers N/A
Wheels Tires Suspension Modifications
Satin Black ARC-8 18x9.5" ET35 275/35/18 Nitto NT01 MCS Coilovers 5mm front spacers
12mm rear spacers
Wheels Tires Suspension Modifications
Hyper Silver ARC-8
Front: 18x8.5" ET38
18x9.5" ET35
Yokohama S Drive
Front: 225/40/18
Rear: 245/35/18
N/A 12mm rear spacer
Wheels Tires Suspension Modifications
Hyper Silver ARC-8 18x9.5" ET35 275/35/18 Continental Slicks JRZ RS Coilovers N/A
Wheels Tires Suspension Modifications
Hyper Silver ARC-8
Front: 18x9.5" ET35
18x10" ET25
Bridgestone Potenza RE760
Front: 255/35/18
Rear: 265/35/18
Ground Control Coilovers N/A
E9X M3
Wheels Tires Suspension Modifications
Satin Black ARC-8 18x10" ET25 275/35/18 Nitto NT01 KW Clubsport Coilovers StopTech 380mm / 355mm Big Brake Kit
5mm front and rear spacers
Wheels Tires Suspension Modifications
Satin Black ARC-8
Front: 18x10" ET25
Rear: 18x10.5" ET27
Michelin PSS Cup
Front: 265/35/18
Rear: 295/35/18
N/A N/A
F30
Wheels Tires Suspension Modifications
Hyper Silver ARC-8 18x8.5" ET38 235/40/18 Hankook RS-3 Factory N/A
1M
WheelsTiresSuspensionModifications
Anthracite ARC-8
Front: 18x9.5" ET22
Rear: 18x10.5" ET27
Michelin Pilot Super Sport
Front: 265/35/18
Rear: 285/30/18
N/AN/A
Z3M
WheelsTiresSuspensionModifications
Hyper Silver ARC-8
Front: 18x9.5" ET35
Rear: 18x10.5" ET27
Front: 255/35/18
Rear: 295/30/18
TC Kline S/A5mm front spacers
WheelsTiresSuspensionModifications
Anthracite ARC-8
Front: 18x8.5" ET38
Rear: 18x10" ET25
Front: 245/35/18
Rear: 285/30/18
N/AN/A
Z4M
WheelsTiresSuspensionModifications
Satin Black ARC-8
Front: 18x9.5" ET35
Rear: 18x10" ET25
Hankook RS3
Front: 255/35/18
Rear: 275/35/18
Aftermarket Coilovers (brand unknown)
Camber plates required
N/A
WheelsTiresSuspensionModifications
Anthracite ARC-8
Front: 18x9.5" ET35
Rear: 18x10" ET25
Continental Slicks
Front: 255/35/18
Rear: 275/30/18
Ground Control CoiloversN/A
8 Series
WheelsTiresSuspensionModifications
Hyper Silver ARC-8
Front: 18x9.5" ET22
Rear: 18x10" ET25
Hankook RS3
Front: 265/35/18
Rear: 285/25/18
Factory5mm front spacers
15mm rear spacers

Updates

UPDATE: Mar 17, 2017

We did it! Everyone is getting $200 off, and we will begin processing orders on Monday.

 

A few of you pointed out that the emailed order receipts are not very clear about which finish you will receive. The finish listed for your "Front Wheel Fitment" and "Rear Wheel Fitment" are what you will receive. If you have a second or third finish listed, that is just there for your records. The site edits your main part numbers to the final finish you will receive.

Members

PHASE COMPLETED


FINAL BUYERS

FINAL ORDERS CHARGED & FULFILLED


1. BURNING RUBBER


ON BOARD

WHEEL: ARC-8

COLOR: Satin Black

Front Wheel Fitment: 18x9.0" ET30

QTY: 1

Rear Wheel Fitment: 18x10.0" ET25


2. RENNSPORTS121


ON BOARD

WHEEL: ARC-8

COLOR: Matte Bronze [+45 Days]

Front Wheel Fitment: 18x10.0" ET25

QTY: 1

Rear Wheel Fitment: 18x10.0" ET25


3. WILLSKILL


ON BOARD

WHEEL: ARC-8

COLOR: Anthracite

Front Wheel Fitment: 18x8.5" ET38

QTY: 1

Rear Wheel Fitment: 18x8.5" ET38


4. ANDRESC


ON BOARD

WHEEL: ARC-8

COLOR: Hyper Black

Front Wheel Fitment: 18x9.5" ET35

QTY: 1

Rear Wheel Fitment: 18x9.5" ET35


5. DATM5


ON BOARD

WHEEL: ARC-8

COLOR: Hyper Silver

Front Wheel Fitment: 18x9.5" ET22

QTY: 1

Rear Wheel Fitment: 18x9.5" ET22



CLICK TO REVEAL FULL LIST

PHASE COMPLETED


INTERESTED MEMBERS

FEELER LIST ONLY - NO PURCHASE OR COMMITMENT


1. JOHN MOORE


INTERESTED

WHEEL: ARC-8

COLOR: Anthracite

Front Wheel Fitment: 18x10.5" ET27

QTY: 1

Rear Wheel Fitment: 18x10.5" ET27


2. RENNSPORTS121


INTERESTED

WHEEL: ARC-8

COLOR: Matte Bronze [+45 Days]

Front Wheel Fitment: 18x10.0" ET25

QTY: 1

Rear Wheel Fitment: 18x10.0" ET25


3. VAS


INTERESTED

WHEEL: ARC-8

COLOR: Hyper Black

Front Wheel Fitment: 18x8.5" ET38

QTY: 1

Rear Wheel Fitment: 18x9.0" ET42


4. EKON HITMAN


INTERESTED

WHEEL: ARC-8

COLOR: Matte Bronze [+45 Days]

Front Wheel Fitment: 18x9.0" ET30

QTY: 1

Rear Wheel Fitment: 18x9.0" ET30


5. VINVAM


INTERESTED

WHEEL: ARC-8

COLOR: Hyper Silver

Front Wheel Fitment: 18x9.5" ET35

QTY: 1

Rear Wheel Fitment: 18x9.5" ET35



CLICK TO REVEAL FULL LIST

Discussion


Terms

Ordering & Payment:

Group Buys are a special order limited time offer. Pricing is exclusively available to those who participate and complete payment as required within the allotted time period. No rain­checks, including members who showed interested during the feeler phase.

 

Orders can only be placed during the payment phase of a Group Buy. Payment information will be collected and authorized during checkout. Orders are authorized at the pledged price. At the close of the Group Buy, the final paid member tally determines the discount reached. Order totals are adjusted down if required and payment is captured for the final amount due. Because all Group Buys are treated as special orders, payments are captured prior to product shipping. Shipping and fulfillment times are listed for each Group Buy on the dashboard.

Free Shipping:

When offered, free shipping is available to members in the 48 mainland US states only. Buyers who want product shipped to Alaska, Hawaii and International destinations will pay for shipping less a special Group Buy discount. Shipping discounts will be listed on the sign­up page. APO/FPO shipping is not supported by this system and these customers should contact the vendor for a shipping quote.

Availability:

Some products may sell out. Availability is limited to vendor’s supply on hand. Orders will be fulfilled on a first­paid­first­fulfilled basis. Some deals allow you to set your preferences for how to handle your order if your first choice is out of stock. If you have a backup selected, you will receive priority availability for inventory before applying stock to the next customer after you. If a deal does not offer the option to set backups then you will be contacted by email/phone directly by the vendor within 48 hours notifying you of the stock issue and offering any available alternatives. You will have the option to modify your selection, accept the wait for new stock, or cancel your order.

Refunds, Exchanges, and Cancellations:

Group Buy orders may only be exchanged if the product is defective. There are NO refunds on Group Buy orders. All orders are considered special order due to the unique production, fulfillment, and pricing of product. They do not share the same terms and conditions as traditional e­commerce purchases.

 

Product options may be changed, and orders may be cancelled prior to the close of the Group Buy by contacting the vendor. Once the Group Buy closes, options may not be changed, and orders may not be cancelled unless the shipping ETA has been exceeded.

 

We recommend purchasing product at the retail price directly with the vendor or one of their affiliates if you would like a traditional return policy.