Apex SM-10RS 18x9 Forged Wheel - 5x120 BP / ET30 / 72.56mm CB - Anthracite (SM10RS189ET30-5120-7256-AN)
The Apex SM-10RS represents the next evolution of lightweight forged wheel technology. As part of Apex's Sprint Line of forged wheels, the SM-10RS combines advanced engineering, motorsport-focused design, and premium forged construction to deliver a wheel that excels under the most demanding conditions while maintaining exceptional street manners.
Manufactured from a massive 6061-T6 aluminum forging formed under an incredible 10,000 metric tons of pressure, the SM-10RS achieves remarkable strength through refined grain structure and reduced porosity. Combined with Apex's proprietary motorsport-specific forging blanks, this wheel delivers exceptional brake clearance, increased stiffness, optimized weight, and the durability enthusiasts expect from a true performance wheel.
Quick Specs
- Part Number: SM10RS189ET30-5120-7256-AN
- Wheel Diameter: 18 inch
- Wheel Width: 9 inch
- Bolt Pattern: 5x120 BP
- Offset: ET30
- Center Bore: 72.56mm
- Finish: Anthracite
- Construction: Fully Forged 6061-T6 Aluminum
- Wheel Series: SM-10RS Sprint Line
- Hub Centric: Yes
- TPMS Compatible: Yes
Forged for Maximum Performance
The SM-10RS begins life as a forging weighing as much as 120 pounds before machining. The immense pressure used during the forging process enhances aluminum strength by eliminating porosity and improving grain structure. Unlike many wheel manufacturers that rely on generic third-party blanks, Apex engineered proprietary motorsport-specific forgings that allow complete control over brake clearance, spoke geometry, concavity, and overall wheel performance.
Using extensive Finite Element Analysis, Apex optimized every aspect of the wheel structure. Material was removed where it provided no measurable strength benefit and strategically reinforced in high-load areas, resulting in a wheel that remains exceptionally lightweight without sacrificing durability.
Advanced I-Beam Spoke Design
One of the defining features of the SM-10RS is its advanced side-milled I-beam spoke architecture. Precision CNC machining removes excess material from both sides of each spoke, reducing weight while maintaining outstanding rigidity. This engineering approach allows Apex to maximize responsiveness and stiffness while minimizing unnecessary mass.
The result is a wheel that is nearly identical in weight to the popular VS-5RS while delivering almost 10% greater stiffness and approximately 25% greater stiffness than Apex's first-generation forged wheel designs.
Built to Handle the Demands of Motorsport
The SM-10RS was engineered for enthusiasts who push their vehicles to the limit. A reinforced Sprint Spec inner lip improves impact resistance, while paintless knurled bead seats help reduce tire movement during aggressive acceleration and braking. Massive brake clearance, application-specific spoke profiles, deep concavity capability, and compatibility with oversized race hardware make this wheel equally suited for street and track use.
To ensure durability, Apex partners with STL, an independent testing laboratory in Ohio, where Sprint Line wheels are tested beyond traditional JWL standards using increased loads, longer testing durations, and more severe impact testing procedures.
Features
- 10K Ton Forged 6061-T6 Aluminum Construction
- Lightweight Sprint Line forged wheel design
- Proprietary motorsport-specific forging blanks
- Advanced side-milled I-beam spokes
- FEA-optimized structure for strength and weight reduction
- Stronger Sprint Spec inner lip design
- Higher load rating than traditional lightweight wheel designs
- Nearly 10% stiffer than comparable Apex forged wheel designs
- Approximately 25% stiffer than first-generation Apex forged wheels
- Independent testing beyond JWL standards
- Massive brake clearance
- Application-specific spoke profiles
- Deep concavity capability
- Paintless knurled bead seats for enhanced tire retention
- Compatible with oversized race lugs and impact sockets
- Laser-engraved wheel specifications
- Hub-centric fitment design
- Accepts OEM and aftermarket TPMS sensors
- Compatible with standard valve stems
- Anthracite finish
Fitment
- Applications Utilizing 5x120 Bolt Pattern and 72.56mm Center Bore
- Commonly Compatible with Select BMW Applications Utilizing 72.56mm Center Bore Hubs
- Verify Brake Clearance, Suspension Clearance, Fender Clearance, and Tire Fitment Prior to Installation
FAQs
What makes the SM-10RS different from traditional lightweight wheels?
The SM-10RS combines lightweight forged construction with reinforced critical areas, advanced I-beam spoke machining, and extensive FEA optimization to provide exceptional strength, stiffness, and durability without unnecessary weight.
Can factory TPMS sensors be reused with this wheel?
Yes. The SM-10RS accepts both OEM and aftermarket TPMS sensors and works with standard valve stems for straightforward installation.
Why Buy From Beefcake Racing?
Beefcake Racing provides expert fitment advice, competitive pricing, fast shipping, and industry-leading customer support to help you select the ideal wheel package for your performance vehicle.
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.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
