Girodisc Rear Replacement Rings for Porsche 981 / 718

Refresh your braking system with Girodisc D2-035 rear replacement rotor rings. These rings include hardware and bolt directly to existing Girodisc hats to restore peak stopping power without the cost of full rotor replacement.

D2-035 Vehicle fitment

• Porsche 981 / 718 Cayman & Boxster (rear axle) compatible with Girodisc 2-piece systems.
• Designed to mate with original Girodisc rear hats only — not compatible with factory two-piece rotor hats.

Note: Always verify hat ID, bolt pattern, and rotor outer diameter compatibility before installation.

Engineered for longevity & cost-effectiveness

The D2-035 rings are precision-machined from high-carbon cast iron. They reuse your existing Girodisc aluminum hats and updated hardware, allowing you to extend the life of your braking system at a lower cost.

D2-035 Features

• Sold as a pair with all replacement mounting hardware
• High-carbon cast iron rotor rings
• Bolt-on fitment to Girodisc hats (no machining required)
• Balanced and heat-treated for reliable performance
• Compatible with floating rotor design using drive pins, spring clips and washers
• Proprietary Girodisc design, manufactured in Bellingham, WA
• Recommended “as new” rebuild when rings are worn or at minimum thickness

Related Products

• Girodisc D1-035 Front Replacement Rings
• Girodisc A2-035 Rear Rotors
• Girodisc A1-035 Front Rotors

Service guidance

• Replace rings when depth or wear reaches minimum spec or upon fatigue cracking.
• Retain Girodisc hats and reuse them with these new D2-035 rings when performing service.

Restore precision braking for your Porsche 981 / 718 at a fraction of the cost: the Girodisc D2-035 rings let you keep your lightweight hat assemblies while delivering renewed performance, fade resistance, and reliability.