D1-242 Girodisc Corvette Front Rings

Refresh your Corvette C8 Z51’s braking system with the Girodisc D1-242 345 mm front replacement rings. These precision-machined rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface while maintaining your lightweight two-piece rotor design and factory braking balance.
Vehicle Fitment
Compatible with:
• Chevrolet Corvette C8 Z51 (2020+) – front axle
Note: Designed exclusively for Girodisc 345 mm two-piece front rotor systems. Not compatible with OEM one-piece or other-brand rotor hats.
Features
• Sold as a left/right pair with full hardware kit
• Direct replacements for Girodisc 345 mm two-piece front rotors
• CNC-machined from high-carbon cast iron for durability
• Directional curved vanes enhance airflow and heat dissipation
• Maintains factory brake bias and ABS calibration
• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 345 mm
• Position: Front
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rings and new hardware kit
• Sold/priced per pair
Girodisc D1-242 Corvette C8 Z51 Front Ring FAQs
Do these fit factory rotor hats on the C8 Z51? No. These rings are engineered for Girodisc-brand hats only and will not mount to OEM hats.
Will these use the OEM calipers? Yes. These rings maintain correct offset and clearance to match the stock Z51 braking geometry when used with Girodisc hats.
Are they suitable for performance or track use? Absolutely. The floating design and high-carbon construction ensure consistent stopping performance and reduced fade under heavy braking.
What’s the benefit of replacing just the rings? You retain your Girodisc hats, save on cost, lower unsprung weight, and keep the two-piece rotor system advantage.
Upgrade your Corvette C8 Z51’s braking performance with Girodisc D1-242 front replacement rings — engineered for precision, cooling and durability on road or track.