Apex ARC-8 18x9 Flow-Formed Wheel 5x120 BP / ET42 / 72.56mm CB - Satin Black (BMW) (ARC8189ET42-5120-7256-SMBK)
The Apex ARC-8 has become one of the most trusted performance wheels in the BMW community by delivering lightweight construction, aggressive motorsport styling, and proven durability for both street and track use. This 18x9 ET42 configuration finished in Satin Black gives your BMW a clean, stealth-inspired appearance while maintaining the strength, brake clearance, and responsive handling characteristics enthusiasts demand.
Manufactured using advanced flow-forming technology, the ARC-8 strengthens the barrel structure to improve rigidity and impact resistance while reducing unnecessary material for optimized weight savings. Apex engineers further refined the wheel through extensive Finite Element Analysis testing, reinforcing critical stress areas while removing excess material wherever possible. The result is a lightweight wheel engineered to withstand aggressive driving, repeated track heat cycles, and demanding road conditions without compromise.
Quick Specs
- Part Number: ARC8189ET42-5120-7256-SMBK
- Wheel Size: 18x9
- Offset: ET42
- Bolt Pattern: 5x120
- Center Bore: 72.56mm
- Finish: Satin Black
- Construction: Flow Formed
- Face Profile: Profile 2 Concavity
- Load Rating: 1,550 pounds
- Weight: Approximately 18.4 pounds
- VIA Registration: VIA-24-0135
- Designed For: BMW Applications
- Accepts OEM BMW Center Caps
- Compatible with OEM and Aftermarket TPMS Sensors
- Compatible with OEM and Aftermarket Mounting Hardware
- Lifetime Structural Warranty
- 1 Year Finish Warranty
Motorsport Engineering Built for BMW Enthusiasts
The ARC-8 was designed around real-world motorsport functionality. Oversized lug recesses allow the use of impact sockets and race lugs, making wheel changes faster and easier during track days and race weekends. The open hub center design further improves accessibility for enthusiasts who frequently rotate between street and track wheel setups.
Brake clearance was also a major focus during development. The ARC-8 accommodates many aftermarket big brake kits while maintaining its signature concave spoke design. This allows drivers to retain the handling and responsiveness benefits of lightweight 18 inch wheels while upgrading to larger braking systems capable of handling aggressive driving and repeated high-temperature use.
Features
- Advanced flow-formed construction improves strength while minimizing weight
- 18x9 sizing with ET42 offset for BMW performance applications
- Concave spoke profile delivers aggressive motorsport-inspired styling
- Finite Element Analysis optimized structure improves rigidity and durability
- Excellent clearance for many aftermarket big brake kits
- Open hub center allows rapid wheel swaps during track use
- Oversized lug recesses support impact sockets and race hardware
- Satin Black multi-stage finish over powder coated base layer
- Untouched mounting surfaces maintain proper torque retention
- Hub-centric BMW fitment with 72.56mm center bore
- No centering rings required for most BMW applications
- Compatible with OEM BMW center caps
- Accepts OEM and aftermarket TPMS sensors
- Compatible with OEM hardware, spacers, wheel locks, and stud conversions
- Meets or exceeds JWL standards and independently VIA certified
- Backed by Apex lifetime structural warranty
- Protected by Apex accidental damage replacement program
Fitment
- BMW E90 3 Series
- BMW E91 3 Series Touring
- BMW E92 3 Series Coupe
- BMW E93 3 Series Convertible
- BMW F22 2 Series
- BMW F30 3 Series
- BMW F31 3 Series Touring
- BMW F32 4 Series Coupe
- BMW F33 4 Series Convertible
- BMW F36 4 Series Gran Coupe
- BMW F80 M3
- BMW F82 M4
- BMW F87 M2
FAQs
Why choose the ET42 version of the ARC-8?
The ET42 offset provides a more conservative fitment option for many BMW applications, offering improved inner clearance and a more factory-style wheel position.
Does this wheel work with OEM BMW TPMS sensors and center caps?
Yes. The ARC-8 is fully compatible with OEM BMW center caps and accepts both factory and aftermarket TPMS sensors for straightforward installation.
Why Buy from Beefcake Racing?
At Beefcake Racing, we help enthusiasts build better-performing vehicles with proven parts, accurate fitment support, and expert customer service. Whether your BMW is a daily-driven street car or a dedicated track machine, our team is here to help you choose the right wheel setup with confidence.
Need help with fitment, offsets, brake clearance, or tire sizing? Contact Beefcake Racing today.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
Note: Wheels that have been mounted with tires are considered used and cannot be returned or refunded. Please verify vehicle fitment before placing your order, and always test fit wheels prior to tire mounting.
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