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BMW 3-Series (E90 E92) Forum > E90/E92/E93 Marketplace (For Sale / Trade / Wanted) > SPONSORS Classifieds/Groupbuys/Specials Area > Wheels and Tires > New: APEX EC-7 Wheel Released



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      04-30-2012, 06:33 PM   #1
Eddy@ApexWheels
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Post New: APEX EC-7 Wheel Released



APEX EC-7 Wheels

APEX is proud to introduce its new EC-7 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 EC-7 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.

A performance-optimized build begins with the perfect wheel fitment. Without the perfect offsets, maximum tire widths and the potential of your car are always compromised. With this in mind, the EC-7 has three unique face profiles ranging from shallow to deep concavity resulting in 14 unique 18" sizes, and 10 unique 19" sizes. This wide range of fitments allows for vehicle-specific caliper clearance, offsets, and tire widths, creating the most optimal setup possible.

Visit our website to order

The Good Stuff






1. They Fit Everything
The EC-7 adds 7 new BMW sizes not available in the ARC-8 design. The 3 face profiles offer maximum concavity and reduced weight. This avoids the common adaptation of a single face profile for unintended fitments or dependency on spacers.

2. Factory Support
Like all our APEX wheels, The EC-7 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 wheels use a 72.56mm center bore.

3. Brake Clearance
If the spokes of a wheel don't clear your brake calipers, then the wheel can't be used at all. We made sure all 18" APEX EC-7 wheels can properly clear OEM steel brakes without spacers. Because of the large variation in clearance needs, we produced the EC-7 wheel using three unique face profiles. When the correct profile is used for each specific vehicle application, all big brake kits can clear the spokes spacer-free, including the Brembo 6-piston 380mm kit.

4. Concavity
Multiple face profiles are utilized to maximize spoke concavity and reduce weight on the EC-7 design. This allows us to maintain our great brake clearance and concave spoke curvature.

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 11" wide 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 a smaller-diameter wheel that can clear large calipers is a must. Due to the low-offset nature of many BMWs, there are no clearance issues with the concave spokes. Barrel clearance was increased during the design phase to accommodate both StopTech and Brembo's 380mm kit.


The APEX Standard



1. FEA Optimization
We took more time than ever before on this step, revising and iterating our design to reduce weight as much as possible. After countless iterations we removed material from the sides of the spokes in a way that allowed us to increase strength over our previous designs.

2. Always Flow Formed
All APEX wheels feature Flow-Formed construction that utilizes rotary forging to produce a strong and lightweight barrel. The EC-7 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



Face Profiles



Sizes, Weights, and Pricing


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 19x9" ET35 and 19x10.5" ET22 in Anthracite with 245/35/19 and 275/35/19 tires.


Shown above: E92 335i with 18x9" ET31 and 18x10" ET33 in Race Silver with 255/35/18 and 265/35/18 tires.


Shown above: F82 M4 with 18x10" ET33 in Satin Black with 285/35/18 tires all around.

Check out our extensive collection of photos on our Flickr page. See more EC-7 photos >>>


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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Last edited by Eddy@ApexWheels; 07-15-2019 at 01:42 PM..
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      04-30-2012, 07:09 PM   #2
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What would be the widest setup for a track staggered on e92?

Possibly a

Front
18x9.5" ET35 - 21.70lbs
with 255/35/18

and

Rear
18x10" ET33 - 22.50lbs
with 275/35/18
?
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      04-30-2012, 07:59 PM   #3
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Wow, these are significantly heavier than the Arc-8's. When are the Arc-8's going to be available in a 18x9.0" ET31?
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      04-30-2012, 08:31 PM   #4
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Quote:
Originally Posted by ExpensiveTaste View Post
Wow, these are significantly heavier than the Arc-8's. When are the Arc-8's going to be available in a 18x9.0" ET31?
The 18x9" ET42 ARC-8 is 18.65lb and requires a 12mm spacer to get to ET30. Our 12mm spacer is 0.85lbs. Once you account for spacer weight to adjust for offset, the new wheel is only 1.75lbs heavier.

At this time we do not have plans for an ARC-8 version since this is a niche fitment, but it may be produced sometime in the future.
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      05-01-2012, 02:36 AM   #5
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Very nice looking. Looks almost like BBS CH, but more concave.

This is kinda off topic, but

I see that there is difference at concavity with same width wheels, but differend offsets.

Is there difference at concavity with Arc-8
Example: Is 18x9.5 et22 more concave than 18x9.5 et35?
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      05-01-2012, 11:36 AM   #6
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I just updated the size list by adding 18x10" ET43 with weight info.


The concavity is different for certain sizes due to caliper clearance needs or offset limitations.

The ARC-8 concave wheels all share the same exact concavity, which is why it's limited to a few available sizes. 18x9.5", 18x10", 18x10.5" all have the same spoke concavity for the ARC-8.
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      05-01-2012, 12:07 PM   #7
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PM Sent, I like these!
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      05-01-2012, 12:44 PM   #8
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Quote:
Originally Posted by paintpro21 View Post

The ARC-8 concave wheels all share the same exact concavity, which is why it's limited to a few available sizes. 18x9.5", 18x10", 18x10.5" all have the same spoke concavity for the ARC-8.
Thank you for info. My 9.5 allround arc-8 should arrive a couple of weeks.I`ve
been waiting those over month already, but thats because very long trip to here.
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      05-01-2012, 02:09 PM   #9
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PM sent.
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      05-01-2012, 03:21 PM   #10
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Very nice wheels.
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      05-01-2012, 04:47 PM   #11
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I can't wait to see these on a track car soon!
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      05-01-2012, 07:48 PM   #12
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WOW!! looks awesome, I've always thought that the only thing that governs how much a wheel sticks out is the ET.. but my friend tells me that an 11" ET25 would stick out more than a 10" ET25? Is this true? If so.. does a 10.5" ET27 stick out more than a 10" ET25? Sorry for the noob questions, my mind was blown when I found out the width matters lol. Thanks

18×10″ ET25 – 22.45lbs
18×10.5″ ET27 – 22.50lbs
18×11″ ET25 – 23.35lbs
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      05-01-2012, 08:02 PM   #13
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What would be a ideal fitment for a 07 e92 335, I'd like a 275 rear tire....no rubbing obviously

These wheels look awesome, I love the concavity
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      05-02-2012, 10:55 AM   #14
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Let me know when there is a group buy.
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      05-02-2012, 10:16 PM   #15
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Great looking wheels. Any pictures straight on?
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      05-03-2012, 07:12 AM   #16
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Very nice! Any pictures of them mounted on a car (preferably an e9X)?
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      05-07-2012, 11:42 PM   #17
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Any chance of hyper black like the 17s you guys just ran? Maybe down the line?
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      05-08-2012, 12:26 PM   #18
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Man, you really need to post pics of this wheel installed on a E9X.
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      05-10-2012, 02:39 PM   #19
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Any updates for pricing and pre-order date?
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      05-12-2012, 12:29 PM   #20
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WOW I thought I was sold on the ARC-8's but these are sweet looking. Looking to hear if turugara question will work?
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      05-12-2012, 04:21 PM   #21
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waiting to see these mounted!
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      05-13-2012, 12:07 AM   #22
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Not an e9x, but gives a good idea (I found these on m3forum.net, I hope you guys don't mind):



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