Our Profile 3 ARC-8s are back with an all-new barrel design optimized specifically for the OE steel brakes on the F80 M3 and F82/3 M4. Many of you were already aware of the original ARC-8s limited barrel design that interfered with the 380mm factory brakes on the F8X chassis. This prevented square fitments with our 18×10 ET25 wheels and also meant that we didn’t initially develop 18×11 ET44 ARC-8 rear wheels for these cars.
Brake clearance was our foremost goal with these new ARC-8s. The new barrel allows us to clear the F8X M3 and M4 brake calipers easily while still maintaining a deep profile 3 level of concavity. On the inside edge, the inner lip has been strengthened to bring our older ARC-8 design up to the standards of our other wheel lines and give you an even more track-ready wheel at a competitive price point.
For us and for many other BMW enthusiasts, a huge part of the appeal of the ARC-8s lies in their deep concave profile synonymous with the M3 chassis and performance BMW fitments. While going to lower profile flatter-faced wheel designs is an easy way to gain brake clearance, we were able to clear the factory brakes without sacrificing concavity which also helps us keep these wheels light. Reducing unsprung rotational mass provides critical benefits on track and it starts with a great set of wheels.
Our 18×11” ET44 wheel was purpose-built for the rear of these cars to give the enthusiast looking to maximize rear-end grip tire options ranging from 200TW 305/35-18s up to 315/30-18 tires for those willing to make adjustments in the rear. This tried and true fitment is now available in our Flow-Formed ARC-8 design for the first time and can be paired with 18×10” ET25 front wheels for our popular bolt-on staggered fitment.
The 18×10” ET25 front, 18×11” ET44 rear fitment is available in our Anthracite, Hyper Silver, and Satin Black finishes. We will eventually offer the 18×10” ET25s in our Hyper Black and Satin Bronze finishes as well.
If you’d like to see which tire sizes and models we recommend for these wheels, take a look at our F8X Fitment guide.
Tom is a BMW Fitment Expert at APEX Wheels. Prior to joining the company in 2019, he worked for BMW of North America as Fleet Manager: Portland (OR) for the ReachNow car-sharing program, and as Warranty Administrator/Loaner Fleet Manager at BMW Portland. In addition, Tom has extensive training in BMW TSBs (Technical Service Bulletins) as well as in-depth knowledge of all BMW chassis and their wheel fitment options, with and without aftermarket brake and suspension upgrades. His high-performance driving experience includes autocross events in southern Oregon and track days at PIR in his 2004 E46 330i with 17x9 ET42 APEX ARC-8 wheels. Vehicles he owned prior to indulging his passion for BMWs include a 1989 Jaguar XJ6 and a 2006 S197 Ford Mustang. Fun Fact: Tom is a huge Formula 1 fan. Have questions about wheels for your BMW? Use our contact form and ask for Tom.