Apex SM-10RS 18x9 Forged Wheel - 5x100 BP / ET42 / 56.1mm CB - Anthracite (SM10RS189ET42-5100-561-AN)
The Apex SM-10RS is designed for enthusiasts who demand lightweight performance without sacrificing strength or durability. 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 capable of handling everything from spirited street driving to competitive track use.
Manufactured from a massive 6061-T6 aluminum forging formed under 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 provides optimized brake clearance, increased stiffness, and race-ready durability in a lightweight package.
Quick Specs
- Part Number: SM10RS189ET42-5100-561-AN
- Wheel Diameter: 18 inch
- Wheel Width: 9 inch
- Bolt Pattern: 5x100 BP
- Offset: ET42
- Center Bore: 56.1mm
- Finish: Anthracite
- Construction: Fully Forged 6061-T6 Aluminum
- Wheel Series: SM-10RS Sprint Line
- Hub Centric: Yes
- TPMS Compatible: Yes
Purpose-Built Forged Performance
The SM-10RS starts life as a forging weighing up to 120 pounds before machining. The immense pressure utilized during the forging process improves aluminum density and grain structure while eliminating porosity, creating an exceptionally strong foundation. Unlike many wheel manufacturers that rely on generic third-party forgings, Apex developed proprietary motorsport-specific blanks to maximize brake clearance, spoke geometry flexibility, concavity, and overall performance.
Extensive Finite Element Analysis (FEA) was used throughout development to identify high-stress areas and optimize material placement. This process allows Apex engineers to remove unnecessary weight while reinforcing critical load-bearing areas, resulting in a wheel that remains exceptionally lightweight without compromising durability.
Advanced I-Beam Spoke Technology
One of the SM-10RS's defining characteristics is its side-milled I-beam spoke design. Material is precision-machined from both sides of each spoke using CNC equipment, removing excess weight while maintaining outstanding rigidity. This advanced manufacturing process helps maximize responsiveness and stiffness while minimizing rotational 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.
Track-Tested Durability
The SM-10RS incorporates a reinforced Sprint Spec inner lip that improves impact resistance while maintaining low weight. Paintless knurled bead seats help prevent tire slippage during aggressive acceleration and braking, while massive brake clearance and application-specific spoke profiles support a wide variety of performance brake systems.
To ensure 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
- Anthracite finish
Fitment
- Applications Utilizing 5x100 Bolt Pattern and 56.1mm Center Bore
- Commonly Compatible with Select Toyota and Subaru Applications Utilizing 56.1mm Center Bore Hubs
- Verify Brake Clearance, Suspension Clearance, Fender Clearance, and Tire Fitment Prior to Installation
FAQs
What makes the SM-10RS part of Apex's Sprint Line?
The Sprint Line focuses on maximizing weight savings while maintaining exceptional strength and stiffness through advanced forging technology, proprietary motorsport-specific blanks, and extensive engineering optimization.
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 assistance, competitive pricing, fast shipping, and knowledgeable 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.
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