Superlight Magnesium Forged Centre Lock Wheels from Ninemeister. Porsche 718 Cayman GT4 RS / 718 Boxster Spyder RS  ❭  9MMAGS4RSSRSC

Ninemeister Superlight Magnesium Forged Centre Lock Wheels - Cayman GT4 RS & 718 Spyder RS

The Ninemeister Superlight Magnesium Forged Centre Lock Wheels are a race-inspired upgrade engineered specifically for the Porsche Cayman GT4 RS and 718 Boxster Spyder RS. Designed to deliver extreme weight reduction with uncompromising rigidity, these wheels dramatically reduce unsprung and rotational mass—unlocking sharper steering response, faster suspension reaction, and heightened driver feedback.

Fits:

• Porsche Boxster Spyder RS 718 4.0L 
• Porsche Cayman GT4 RS 718 4.0L
  
  

When ordering wheels, please specify the desired offset (if known) and vehicle details in comments box at checkout stage
If offset is unknown please leave vehicle details (VIN) and we can advise.

Available from Design911, these centre lock wheels are forged from magnesium billet using an industry-leading 10,000 TON forging process, achieving weight savings of up to 40% compared to OEM aluminium wheels. The result is a transformative performance upgrade befitting Porsche’s most focused mid-engine RS models.

What Do Ninemeister Magnesium Centre Lock Wheels Do?

These wheels elevate handling and performance by optimising mass and strength where it matters most.

Core Functions:

• Reduce unsprung and rotational weight for faster suspension response.
• Sharpen steering precision and on-centre feel.
• Improve braking efficiency and acceleration response.
• Enhance chassis balance and tyre contact.
• Maintain exceptional rigidity under extreme track loads.

Lower wheel mass allows the GT4 RS and Spyder RS chassis to perform closer to its motorsport potential.

Why Upgrade to Ninemeister Superlight Magnesium Wheels?

For RS owners, reducing wheel weight delivers immediate, measurable gains.

Upgrade Advantages:

• Up to 40% lighter than standard aluminium wheels.
• Forged magnesium billet construction for superior strength-to-weight ratio.
• Manufactured using 10,000 TON of forging pressure.
• Reduced rotational inertia for quicker throttle response.
• Motorsport-style centre lock design with exclusivity and performance focus.

This upgrade complements the lightweight philosophy and track intent of Porsche’s RS models without compromising durability.

Wheel Specifications & Construction

• Front: 20 x 9"
• Rear: 20 x 10"
• Forged magnesium billet construction
• Industry-leading 10,000 TON forging process
• Superlight centre lock design
• Available in a variety of colours (made to order)
• Engineered specifically for Cayman GT4 RS & 718 Boxster Spyder RS

Please note:
Wheels are made to order and carry a lead time of up to 14 weeks.
Centre lock nuts not included 

Key Benefits

• Significant reduction in unsprung and rotational mass
• Sharper steering and enhanced chassis feedback
• Improved braking and acceleration performance
• Motorsport-grade materials and manufacturing
• Exclusive, bespoke finish options