Apex SM-10RS 18x9 Forged Wheel - 5x120 BP / ET30 / 72.56mm CB - Brushed Clear (SM10RS189ET30-5120-7256-BC)
The Apex SM-10RS is engineered for drivers who demand every possible advantage in performance, strength, and responsiveness. As part of Apex's Sprint Line of forged wheels, the SM-10RS combines lightweight construction, advanced engineering, and race-proven durability to create a wheel that thrives in both street and track environments.
Built from a massive 6061-T6 aluminum forging formed under an incredible 10,000 metric tons of pressure, the SM-10RS achieves exceptional strength through refined grain structure and reduced porosity. Combined with Apex's proprietary motorsport-specific forging blanks, this wheel delivers optimized brake clearance, increased stiffness, deeper concavity capability, and the durability serious enthusiasts expect from a premium forged wheel.
Quick Specs
- Part Number: SM10RS189ET30-5120-7256-BC
- Wheel Diameter: 18 inch
- Wheel Width: 9 inch
- Bolt Pattern: 5x120 BP
- Offset: ET30
- Center Bore: 72.56mm
- Finish: Brushed Clear
- Construction: Fully Forged 6061-T6 Aluminum
- Wheel Series: SM-10RS Sprint Line
- Hub Centric: Yes
- TPMS Compatible: Yes
True Motorsport Forged Construction
The SM-10RS begins as a forging weighing up to 120 pounds before machining. The extreme pressure applied during the forging process improves aluminum density and grain structure while eliminating porosity, creating an exceptionally strong foundation. Unlike many manufacturers that utilize generic third-party forgings, Apex developed proprietary motorsport-specific blanks that allow complete control over wheel architecture, brake clearance, spoke profiles, and overall performance.
Extensive Finite Element Analysis (FEA) was used throughout development to reinforce high-stress areas while removing material that offered no measurable strength benefit. The result is a wheel that remains exceptionally lightweight without sacrificing durability or structural integrity.
Advanced I-Beam Spoke Design
One of the SM-10RS's most recognizable features is its side-milled I-beam spoke technology. Precision CNC machining removes excess material from both sides of each spoke, reducing weight while maintaining exceptional rigidity. This advanced engineering approach helps maximize responsiveness and stiffness while minimizing unnecessary mass.
The result is a wheel that is nearly identical in weight to the VS-5RS while delivering almost 10% greater stiffness and approximately 25% greater stiffness than Apex's first-generation forged wheel designs.
Engineered for Track Abuse
The SM-10RS was developed to withstand the demands of high-performance driving. A reinforced Sprint Spec inner lip improves impact resistance, while paintless knurled bead seats help prevent tire movement under aggressive braking and acceleration. Massive brake clearance, deep concavity capability, application-specific spoke profiles, and compatibility with oversized race hardware further enhance the wheel's motorsport credentials.
To validate durability, Apex utilizes independent testing through STL in Ohio. Sprint Line wheels are tested beyond traditional JWL standards using increased loads, extended 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
- Brushed Clear 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
Why does the SM-10RS use a side-milled I-beam spoke design?
The side-milled I-beam design removes unnecessary material while maintaining structural rigidity, helping reduce wheel weight while improving stiffness and overall performance.
Will factory TPMS sensors work with this wheel?
Yes. The SM-10RS accepts both OEM and aftermarket TPMS sensors and is compatible with standard valve stems for simple installation.
Why Buy From Beefcake Racing?
Beefcake Racing offers expert fitment guidance, competitive pricing, fast shipping, and exceptional customer support to help you select the ideal wheel and tire package for your 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.
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