GiroDisc GiroDisc 15-20 Alfa Romeo 4C Slotted Rear Rotors
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GiroDisc 15-20 Alfa Romeo 4C Slotted Rear Rotors

GiroDisc
GIRA2-078
A2-078
Brake Rotors - Slotted
2 Units In Stock - Ships Next Business Day
$ 995.00
$ 995.00

SKU: A2-078

GiroDisc 2015-2020 Alfa Romeo 4C Slotted Rear Rotors

GiroDisc slotted rear rotors deliver reliable braking performance for 2015-2020 Alfa Romeo 4C models including Coupe and Spider. These two-piece rotors replace OEM parts directly with a lightweight aluminum hat and high carbon iron ring for lower unsprung weight and effective heat management. Drivers experience reduced fade during spirited driving or track sessions.

Key Features

  • Two-Piece Construction: Forged 6061-T6 aluminum hat bolts to 310mm x 22mm high carbon cast iron slotted ring reducing weight by 4 lbs per rotor versus stock while isolating heat from hubs.
  • Slotted Friction Surface: 72 internal cooling vanes and external slots evacuate gases water and debris for improved pad bite consistent performance and minimal fade under load.
  • High Carbon Alloy Ring: Resists thermal cracking and warping at temperatures exceeding 1000°F ensuring durability on street or track.
  • Patented Floating Design: Retention screws allow thermal expansion without stress on mounting surfaces maintaining precise rotor-to-hat alignment.
  • Direct Bolt-On Fit: Matches OEM 5x108 bolt pattern and 145mm hat OD no modifications needed uses factory calipers pads and hardware.

Product Notes

  • Rotors sold as pair (LH and RH) for complete rear axle upgrade.
  • Pair with GiroDisc pads for maximum performance bedding required before track use.
  • Special order item expect 3-5 business day processing time.

Installation Notes

  • Professional installation recommended.
  • Torque hat screws to 20 ft-lbs during assembly use thread locker.
  • Compatible with OEM calipers hardware and pad shims no adapters required.

This Part Fits

Year Make Model Submodel
2015-2020 Alfa Romeo 4C Coupe
2015-2020 Alfa Romeo 4C Spider All

Why Choose GiroDisc?

  • Engineered and machined in the USA with racing-proven designs used in SCCA and endurance series.
  • Precise tolerances and balanced rotors minimize vibration for smooth operation.
  • Focused on lightweight high-performance braking components for sports cars.

Frequently Asked Questions

  • Q: Will these rotors fit my 2018 Alfa Romeo 4C Spider?
    A: Yes A2-078 fits all 2015-2020 4C Coupe and Spider models as direct OEM replacement rear rotors 310x22mm size.
  • Q: What material is used in the rotor ring?
    A: High carbon 72-vane cast iron for strength and heat resistance paired with corrosion-resistant aluminum hat.
  • Q: What is the warranty and bedding process?
    A: Lifetime warranty against hat separation or warping when used with compatible pads follow GiroDisc bedding procedure of 10-10-10 stops for optimal performance.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: Special order ships within 3-5 business days
  • Packaging: Custom protective box 16 x 16 x 8 inches
  • Weight: 24 lbs

Request For Information

Have questions about GiroDisc 15-20 Alfa Romeo 4C Slotted Rear Rotors? Fill out the form below and we'll get back to you by the next business day.
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