Apex ARC-8 18x9 Flow-Formed Wheel 5x120 BP / ET42 / 72.56mm CB - Hyper Black (BMW) (ARC8189ET42-5120-7256-NHBK)
The Apex ARC-8 has become a benchmark for BMW performance wheels thanks to its lightweight construction, motorsport-inspired styling, and proven durability under demanding driving conditions. This 18x9 ET42 configuration finished in Hyper Black delivers an aggressive, stealth-focused appearance while providing the strength, brake clearance, and responsive handling characteristics enthusiasts expect from a serious performance wheel.
Built 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 using extensive Finite Element Analysis testing to reinforce high-stress areas and eliminate excess material where it provides no structural advantage. The result is a lightweight wheel engineered to handle aggressive street driving, track use, and repeated heat cycles with confidence.
Quick Specs
- Part Number: ARC8189ET42-5120-7256-NHBK
- Wheel Size: 18x9
- Offset: ET42
- Bolt Pattern: 5x120
- Center Bore: 72.56mm
- Finish: Hyper 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
Built for Enthusiasts Who Push Their BMW Hard
The ARC-8 was engineered with true motorsport functionality in mind. Oversized lug recesses allow the use of impact sockets and race lugs, making wheel swaps 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 setups.
Brake clearance was also heavily prioritized during development. The ARC-8 accommodates many popular aftermarket big brake kits while maintaining its signature concave spoke profile. This allows drivers to retain the responsiveness and handling advantages 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 increases strength while reducing 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
- Hyper Black multi-stage finish over powder coated base layer
- Untouched mounting surfaces ensure 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 offers a more conservative fitment option that works well for many BMW applications requiring additional inner clearance or a more OEM-style wheel position.
Does this wheel support OEM BMW hardware and TPMS sensors?
Yes. The ARC-8 is designed to work with OEM BMW center caps, lug hardware, and both factory and aftermarket TPMS sensors.
Why Buy from Beefcake Racing?
At Beefcake Racing, we work with enthusiasts who expect proven performance parts, accurate fitment guidance, and knowledgeable support. Whether you are building a track-focused BMW or refining your street setup, our team is here to help you choose the right wheel and tire package 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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