Competition Motorsport Custom Litespeed Racing Spec5 Centerlock Wheels
Forged Centerlock Wheels for Porsche Cayman GT4 RS & Boxster RS Spyder
Fitment:
- Porsche Cayman GT4 RS (2023+)
- Porsche Boxster RS Spyder (2023+)
The Competition Motorsport Custom Litespeed Racing Spec5 Track Package delivers professional-grade forged aluminum performance engineered specifically for Porsche centerlock applications. Each wheel is custom-built for the GT4 RS and RS Spyder and features “Competition Motorsport” precision-machined directly into the outer lip — a subtle but unmistakable mark of purpose-built track performance.
Built from aerospace-grade forged 6061-T6 aluminum, the Spec5 monoblock wheel is CNC-machined to exact Porsche load ratings, offsets, and centerlock specifications. Compared to cast or flow-formed wheels, fully forged construction provides superior tensile strength, improved fatigue resistance, and meaningful weight reduction — translating directly into sharper steering response, improved acceleration, stronger braking performance, and reduced unsprung mass.
Track-Engineered Spec5 Monoblock Design
The Litespeed Racing Spec5 is a one-piece forged monoblock wheel designed exclusively for motorsport use. Its ten-spoke architecture incorporates strategically machined spoke pockets and FEA-optimized geometry to remove unnecessary material while maintaining structural rigidity.
Every Competition Motorsport Spec5 centerlock wheel is engineered for:
- Maximum stiffness under high lateral loads
- Exceptional fatigue strength for repeated track cycles
- Reduced rotational mass for improved throttle response
- Proper Porsche centerlock hub interface
This is not a generic aftermarket wheel — it is a purpose-built Porsche track solution.
Standard Track Package Specifications
Each package includes four forged monoblock centerlock wheels (two front, two rear).
Standard GT4 RS / RS Spyder Setup:
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Front: 8.5J x 20 – ET61
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Rear: 11J x 20 – ET50
Custom widths, offsets, and 19–20 inch configurations are available upon request. Because every set is built-to-order, we can tailor fitment for specific suspension setups, alignment targets, or motorsport applications.
Priced and sold as a set of four wheels.
Brake Clearance & 19-Inch Fitment Notes
The Porsche GT4 RS utilizes large 408mm steel or 410mm PCCB carbon-ceramic rotors. In most cases, 20-inch wheels are required for proper brake clearance.
To run 19-inch wheels — particularly with PCCB — the following modifications are typically required:
- Brake system adjustments to ensure radial clearance
- Motorsport-style rear toe links for added clearance and adjustability
- Front and rear camber plates for alignment flexibility
Please contact us prior to ordering a 19-inch setup so we can confirm your configuration.
Premium Motorsport Finishes
Your Competition Motorsport Spec5 wheels are powder-coated in your choice of premium finishes, engineered for durability under track conditions. Standard finishes are included, with custom options available upon request.
Ordering & Lead Times
Spec5 wheels may be in stock or built-to-order depending on configuration. Typical lead times range from 4–12 weeks based on seasonal demand. Contact us for current availability and production timelines.
