Apex SM-8RS 17x10.0/+43/4x100/Bore 54.1mm/Profile 1

 If you’re looking for fitment advice for your 2016 - Current Mazda ND Miata, you’ve come to the right place. Our ND Miata Fitment Guide contains tailored information for a wide range of wheel and tire setups specific to the Miata. Featuring popular fitments such as 17x9” ET45, we’re certain that our Mazda ND Miata fitment guide has a solution for you. As enthusiasts ourselves, we’re mindful of the unique needs that each chassis presents when attempting to optimize wheel fitment and this vehicle is no exception. Our 17x9" ET45 and 17x10" ET43 specifically clear the factory Brembo brakes as well as a wide variety of aftermarket big brake kits. Our Mazda ND Miata Fitment Guide goes into great detail on exactly what modifications are needed to achieve the exact fitment you’re looking for. We have developed a specific strong, lightweight forged wheel design for the ND Miata. Introducing our Forged Sprint SM-8RS, we're certain this wheel will be popular with street and track drivers alike!

Brake Clearance Information

In the engineering phase of wheel development we 3D scan factory brakes and review 2D aftermarket brake templates in order to optimize our barrel profiles and spoke curvatures. As a result, our wheels offer massive brake clearance so you can run the smallest possible wheel diameter.

Brake Clearance Information

ONLY the 17x9" ET45 and 17x10" ET43 SM-8RS clear the factory Brembo brakes without spacers. For those interested in our 17x8" ET40 wheel, please be sure to confirm your vehicle's brakes first!

10K Tons of Pressure

Our new forgings weigh as much as 120 pounds before machining. To form such a thick blank we require special equipment capable of 10,000 metric tons of pressure, well above what most other brands use. This extreme pressure increases the strength of the aluminum by eliminating porosity and improving the grain structure.

True Motorsport Blanks

Many companies use 3rd-party blanks intended for non-motorsport wheels which can severely limit sizes, concavity, spoke design, and critical brake clearance. We designed our very own blank profiles from scratch which gives us total control over the final product, resulting in exceptionally deep spokes and stronger designs.

I-Beam Spokes

One of the most noticeable features of the SM-8RS is its use of side-milling on both sides of each spoke, creating an I-beam effect. Any excess material that doesn’t add strength is carved out using a precision CNC ball cutter. Side-milling is often deemed cost-prohibitive by others, but for true performance without compromise we believe it's essential.

A Stronger Lightweight Wheel

Our forged Sprint™ wheels are lightweight without the strength compromises found on typical lightweight wheels. First, we carved out as much material as possible, then we purposefully added one pound back to reinforce critical areas, creating a stronger inner lip and a higher load rating.¹ What’s the point of a lightweight wheel if it’s fragile?

Load Ratings (lbs)

JWL Load Standard

1,168

Typical Forged Wheels

1,213

APEX Forged SM-8RS

1,400

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.¹

Greater Stiffness

Just like the SM-10RS it’s based on, we used Finite Element Analysis of bending loads to optimize spoke geometry on the SM-8RS  for greater stiffness without increasing weight.

Independently Tested

We don't rely solely on computer simulations or unverifiable in-house testing. We believe independent testing is critical to protect consumers in this unregulated industry. We chose STL, an independent lab in Ohio, to test our Sprint wheels far above JWL standards, including increases in testing duration, impact drop height, and total load.

Tougher Inner Lip

Introducing the Sprint™ spec inner lip, with a unique channel profile that makes it even stronger than our previous designs. So even though our Sprint™ wheels are pounds lighter than comparable Flow Formed wheels, the inner lip is 32% stronger.²

32%

More reinforcement than our flow formed wheels³

Big Brake Clearance

From day one, Apex has been on a mission to build wheels that clear big brakes. Our new forged SM-8RS is no different and the 9” and 10” fitments were designed specifically to clear both the ND’s large OEM Bremos and aftermarket BBKs.

Paintless Knurled Bead

Whether it’s a day at the track or months of street driving, repeated hard braking and acceleration can make a tire slip along the bead seat and go out of balance, causing vibration. Knurled beads help, but are less effective when painted over. Our forged line features unpainted knurled beads that stay sharp and maximize grip.

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