Girodisc Ferrari 348 / F355 Front Rotors

The Girodisc system is a direct replacement for the factory front rotors on Ferrari 348 and F355 models. Designed as a high-performance alternative to OEM discs, these 2-piece floating assemblies weigh just 14.3 lbs per rotor—significantly reducing unsprung and rotational mass. This results in sharper handling, quicker suspension response, and improved braking control without affecting factory brake bias or ABS performance.

Advanced Construction

Each rotor ring is machined from Girodisc’s proprietary high-carbon iron alloy, developed for optimal strength, thermal stability, and durability under extreme conditions. The 30 curved directional vanes act as centrifugal pumps, pulling air through the hub to cool the rotors efficiently during heavy braking. The 6061-T6 aluminum hat is lightweight, anodized for corrosion resistance, and reusable—simply bolt new replacement rings (part number D1-002) when needed.

Girodisc A1-002 Features

• Direct bolt-on replacement for OEM Ferrari 348 and F355 rotors
• Lightweight 2-piece floating rotor design for reduced unsprung mass
• Proprietary high-carbon iron rotor rings for improved heat management
• 30 curved vane internal cooling channels enhance air flow
• 6061-T6 aluminum hats with black anodized finish
• Cadmium-plated high-strength steel drive pins for corrosion resistance
• Belleville washers and spring clips provide quiet, street-friendly operation
• Fully rebuildable – replace only the iron rings when worn
• Manufactured in the USA from domestically sourced materials

Vehicle Fitment

• Ferrari 348 (1989–1995)
• Ferrari F355 (1994–1999)

Technical Specifications

• Part Number: A1-002
• Position: Front
• Diameter: 300mm
• Thickness: 28mm
• Minimum Thickness: 26mm
• Weight: 14.3 lbs per rotor
• Rotor Type: 2-piece floating
• Hat Material: 6061-T6 aluminum (black anodized)
• Disc Material: Girodisc proprietary high-carbon cast iron
• Vane Design: 30 curved directional vanes
• Drive Pins: High-strength steel alloy, cadmium-plated
• Sold/Price: Per pair

FAQs for Girodisc A1-002

Do these fit directly without modification? Yes. The Girodisc system bolts directly to the factory hubs and works seamlessly with OEM calipers and pads.

Can I replace only the iron rings? Yes. Girodisc rotors are fully rebuildable—when the rings wear out, you can replace them with new D1-002 rings and reuse the aluminum hats.

Are these rotors quieter than typical floating designs? Yes. Girodisc uses Belleville washers and spring clips to maintain proper float while eliminating unwanted noise or rattle during street driving.

Are they suitable for track and competition use? Absolutely. The high-carbon iron alloy and advanced vane design ensure superior heat dissipation and performance under extreme braking loads.

Upgrade your Ferrari 348 or F355 with Girodisc’s precision-engineered floating rotors—crafted in the USA for optimal cooling, reduced weight, and unparalleled braking performance on road or track.