Apex SM-10RS 18x9 Forged Wheel - 5x120 BP / ET30 / 72.56mm CB - Satin Bronze (SM10RS189ET30-5120-7256-NSBZ)
The Apex SM-10RS is built for enthusiasts who demand uncompromising performance from every component of their vehicle. As part of Apex's Sprint Line of forged wheels, the SM-10RS blends lightweight construction, exceptional stiffness, and race-proven durability into a wheel engineered to perform at the highest levels on both the street and the track.
Constructed from a massive 6061-T6 aluminum forging formed under an incredible 10,000 metric tons of pressure, the SM-10RS benefits from enhanced grain structure and reduced porosity for superior strength. Combined with Apex's proprietary motorsport-specific forging blanks, this wheel delivers optimized brake clearance, exceptional rigidity, and long-term durability without sacrificing weight savings.
Quick Specs
- Part Number: SM10RS189ET30-5120-7256-NSBZ
- Wheel Diameter: 18 inch
- Wheel Width: 9 inch
- Bolt Pattern: 5x120 BP
- Offset: ET30
- Center Bore: 72.56mm
- Finish: Satin Bronze
- Construction: Fully Forged 6061-T6 Aluminum
- Wheel Series: SM-10RS Sprint Line
- Hub Centric: Yes
- TPMS Compatible: Yes
Engineered from the Ground Up for Motorsport
The SM-10RS starts life as a forging weighing up to 120 pounds before any machining occurs. The extreme pressure utilized during the forging process improves material density and grain structure while eliminating porosity, creating an exceptionally strong foundation. Unlike generic third-party forgings, Apex designed proprietary motorsport-specific blanks that allow complete control over wheel geometry, brake clearance, spoke architecture, and overall performance.
Extensive Finite Element Analysis (FEA) was used throughout development to identify high-stress areas and optimize material placement. The result is a wheel that remains exceptionally lightweight without the compromises often associated with ultra-lightweight wheel designs.
Advanced I-Beam Spoke Technology
One of the most distinctive features of the SM-10RS is its side-milled I-beam spoke design. Material is precision-machined from both sides of each spoke using CNC equipment, reducing unnecessary mass while maintaining outstanding rigidity. This advanced engineering approach allows Apex to maximize stiffness and responsiveness while minimizing weight.
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.
Built to Take Abuse
The SM-10RS was developed to thrive in demanding environments. A reinforced Sprint Spec inner lip improves impact resistance, while paintless knurled bead seats help reduce tire movement during aggressive braking and acceleration. Massive brake clearance, application-specific spoke profiles, deep concavity capability, and compatibility with oversized race hardware further reinforce its motorsport-focused design.
To validate 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
- Satin Bronze 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 forged wheels?
The SM-10RS combines proprietary motorsport-specific forgings, advanced I-beam spoke machining, extensive FEA optimization, and a reinforced Sprint Spec inner lip to maximize strength, stiffness, and lightweight performance.
Can OEM TPMS sensors be used with this wheel?
Yes. The SM-10RS is fully compatible with OEM and aftermarket TPMS sensors and accepts standard valve stems for straightforward installation.
Why Buy From Beefcake Racing?
Beefcake Racing provides expert fitment assistance, 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
