Apex SM-8RS 17x8 Forged Wheel - 4x100 BP / ET40 / 54.1mm CB - Brushed Clear (SM8RS178ET40-4100-541-BC)
The Apex SM-8RS delivers serious motorsport performance for the Mazda ND MX-5 Miata in a lightweight forged package designed from the ground up for enthusiasts who demand more from their wheels. As a member of Apex's Sprint Line, this eight-spoke design takes inspiration from the acclaimed SM-10RS while offering exceptional strength, stiffness, and weight optimization. Finished in Brushed Clear, the SM-8RS provides an aggressive look backed by race-proven engineering.
Manufactured from forged 6061-T6 aluminum using an immense 10,000-ton forging process, the SM-8RS offers an impressive 1,400-pound load rating, exceeding JWL requirements by over 230 pounds and surpassing many aftermarket ND Miata wheel options. Extensive Finite Element Analysis, purpose-built motorsport blanks, and the reinforced Sprint spec inner lip work together to create a wheel that excels on the street and the track alike.
Features
- Forged 6061-T6 aluminum construction
- Produced using a massive 10,000-ton forging process
- Designed specifically for the Mazda ND MX-5 Miata platform
- Outstanding 1,400-pound load rating
- Over 230 pounds stronger than required for JWL certification
- I-beam side-milled spokes reduce weight while maintaining rigidity
- Purpose-built motorsport blank design
- Sprint spec inner lip offers 32% greater strength than previous designs
- FEA-optimized spoke geometry for increased stiffness
- Independently tested beyond JWL standards
- Large brake clearance for OEM and aftermarket brake systems
- Paintless knurled bead seats maximize tire grip and reduce slippage
- Compatible with oversized race lugs and impact sockets
- Laser-engraved specifications for easy identification
- Hub-centric design minimizes the need for centering rings
- Gloss black Apex center cap included
- Compatible with OEM and aftermarket TPMS sensors
- Accepts standard valve stems
- Premium Brushed Clear finish
Specifications
- Part Number: SM8RS178ET40-4100-541-BC
- Wheel Size: 17x8
- Bolt Pattern: 4x100 BP
- Offset: ET40
- Center Bore: 54.1mm
- Finish: Brushed Clear
- Material: Forged 6061-T6 Aluminum
- Series: SM-8RS Sprint Line
- Load Rating: 1,400 lbs
Track-Ready Performance
The SM-8RS was engineered to deliver the stiffness, strength, and reliability serious enthusiasts expect. Extensive computer analysis and independent testing helped Apex create a wheel that can withstand the demands of track use while maintaining the lightweight responsiveness that makes the ND Miata such an entertaining platform.
Fitment
- Applications utilizing a 4x100 bolt pattern and 54.1mm center bore
- ET40 offset specification
- Verify brake, tire, suspension, and fender clearance before installation
FAQs
Can factory TPMS sensors be reused?
Yes. The SM-8RS accepts OEM and aftermarket TPMS sensors and uses standard valve stems.
Will OEM center caps fit these wheels?
No. SM-8RS wheels include a gloss black Apex center cap and are not designed to accept factory center caps.
Why Buy From Beefcake Racing?
At Beefcake Racing, we're enthusiasts just like you. Whether you're building a weekend canyon carver or a dedicated track machine, our team is committed to providing expert advice and outstanding customer service before and after the sale.
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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