Front, 18", Profile 3, 5 Lugs, Anthracite- Rear, 18", Profile 3, 5 Lugs, Anthracite
BMW E89 Z4 Wheels
Lightweight forged & flow formed wheels for your 2009-2016 E89 Z4 Roadster
9/9 Designs
Forged Sprint line
Forged Touring line
Flow Formed Evolution line
Flow Formed Classic line
Finish: Anthracite
Overview
BMW E89 Z4 Wheel Performance
Despite the switch to more powerful turbocharged powertrains, the second generation E89 Z4 wheel fitments lacked width both for tire size and wheel size. Narrower 225 section front tires also made the default handling characteristic of the chassis understeer, despite the focus on a RWD layout. A set of lightweight chassis specific wheels is key to unlocking the performance of the E89 chassis.
We created forged wheels like the EC-7RS, SM-10RS, and VS-5RS to complement our flow formed wheels like the ARC-8, EC-7, FL-5 and SM-10s, giving enthusiasts multiple options at competitive price points. Learn more about which setup via our E89 Z4 Wheel and Tire Fitment Guide.
About the E89 Z4
Launched in 2009, The E89 Z4 represented a shift in overall philosophy for BMW’s sports car platform. Gone were the multiple chassis with fixed hardtops and convertible roofs. This traditional split was instead replaced with a single model that used a folding metal roof providing in essence, the security of a hardtop with the open-air driving experience of a convertible. While this provided more comfort and security relative to a traditional soft top convertible, the lack of true hardtop led to a heavier overall platform.
Unlike the Z3 and Z4 generations before it, the E89 Z4 did not get a dedicated M model. Turbocharging came to the Z4 platform with the E89 generation with a wide range of 4 cylinder and 6 cylinder models. Lower tier models began with the naturally aspirated N52 and N53 engines but eventually switched over to N20 4 cylinder models. The N54 powered the top of the range sDrive35i and sDrive35is models. A 6 speed manual and several automatic transmission options were available, along with a unique dual clutch as the only transmission available on the sDrive35is models. Turbocharged models benefit immensely from an aftermarket E89 Z4 wheel fitment to aid in putting down all that torque.
See how the E89 compared to its contemporaries in this review from Car and Driver.
E89 Gallery
BMW Z4 E89
BMW Z4 E89
BMW Z4 E89
BMW Z4 E89
BMW Z4 E89
ARC-8 Specifications
Reproductive Harm - www.p65warnings.ca.cov 
ARC-8 features
The Flow Form Advantage
Flow forming enables us to create high performance wheels without the price premium of forging. It improves the mechanical properties and grain structure of the barrel, increasing its strength and stiffness, which allows us to use less material and reduce weight. Thanks to our superior engineering, our flow formed wheels have a higher load rating than some competitors' forged wheels.
Big Brake Clearance
Big brakes often require bigger, heavier, more expensive wheels, which aren’t ideal in a performance environment. The ARC-8 accommodates many big brake kits, even with its classic deep-concave spokes. If you need more clearance, the forged ARC-8R or one of our curved spoke wheel designs has you covered.
Maximizing Concavity
We use the deepest concave face profiles we can for every application after factoring in critical clearances such as brake calipers. The ARC-8 utilizes 2 unique profiles to make this possible, with the deepest concave face delivering reduced weight and a stunningly aggressive appearance.
Weight Optimized
We conducted extensive Finite Element Analysis (FEA) to reinforce high-stress areas and to remove material where it didn’t improve strength. The result is a wheel that is exceptionally light without the strength compromises found on typical lightweight wheels.²
Built for Impact Sockets
Track wheels need track tools. Don’t settle for wheels that require undersized tuner lugs or thin walled sockets. All APEX wheels accommodate over-sized race lugs and impact sockets to make swapping wheels lightning fast.
32mm
Socket Diameter Clearance
Finishing Touches
The ARC-8 is finished using a multi-stage liquid paint over a powder coated base coat. This coating process leaves lug holes, center bores and mounting pads untouched, which ensures proper fit and torque values.
JWL and Beyond
All APEX Flow Formed wheels meet or meaningfully exceed JWL load rating requirements. Some manufacturers don't meet the minimum requirements, yet still claim to be compliant. Always compare load ratings to ensure you aren’t sacrificing critical strength for a slightly lighter wheel.
True VIA
The VIA is an independent wheel testing and auditing agency similar to TÜV. Many companies falsely claim their wheels have been certified, and even use the VIA stamp without permission. Our Flow Formed wheels have been certified, and we provide the registration numbers for every wheel. Protect yourself. Demand registration numbers from manufacturers.
Additional features
Hub Centric
All ARC-8 wheels are purpose built for select vehicle applications. Very few applications require centering rings.
Center Caps
All APEX wheels come with our gloss black cap included that is interchangeable with the OE cap. We also offer additional colors for select fitments.
Wheel Hardware
APEX wheels can be used with all OEM mounting hardware, proper aftermarket hardware and most wheel spacers. Wheel locks and stud conversion kits also work perfectly.
TPMS
All APEX wheels accept OEM and aftermarket Tire Pressure Monitoring Sensors and standard fit valve stems. If you don’t have sensors, then select from our metal stems available in multiple finishes.
Accessories
REAL DRIVERS NEED REAL PERFORMANCE.
Not all claims of performance are backed up by facts—and it's a big problem. Don't get sold fashion when you want function.
A Wheel You Can Depend On
Accidental damage replacement
Curb rash or pothole damage on the street? Make an oopsie at the track? We’ve all been there. APEX is proud to offer 50% off replacement wheels, no matter the damage.
Lifetime warranty
All APEX wheels come with a lifetime structural warranty against defects in workmanship and materials, plus a 1 year finish warranty. Exchanges are fast, easy, and hassle-free.
Footnotes
¹ All wheels compared with equivalent 18x10” ET25 5x120mm / 72.56mm fitment. Price displayed based on MSRP as of 5/16/2025.
If you like cheap gear you will hate this newsletter.