GiroDisc 2-Piece Front Rotors 2022-2026 Cadillac CT4-V Blackwing

The Cadillac CT4-V Blackwing has a 472 hp twin-turbo V6, a manual gearbox option and a chassis built for road courses. Its brakes take a beating on track. These Giro Disc 2-piece slotted front rotors replace the factory front discs with a fully floating assembly. That cuts unsprung and rotating mass at the front axle, and the bigger cooling capacity holds up through repeated hard stops. They bolt to the factory calipers with no modifications.

Why a 2-piece rotor

A one-piece iron disc is heavy and tends to cone and crack when the friction face gets hotter than the hub. GiroDisc separates the two jobs. The iron ring handles friction and heat. A black-anodized 6061-T6 aluminum hat handles mounting. The ring floats on drive pins, so it can grow with heat without pulling on the hat, and it centers itself between the pads for a consistent pedal. When the rings wear out, you keep the hats and bolt on fresh 380x34mm GiroDisc rings (D1-066), which costs less over time than whole rotors.

Features

• High-carbon iron rings cast to GiroDisc's own formula for crack resistance under repeated heat cycles
• 72 curved internal vanes that pump air out through the ring for cooling
• Slotted friction face that keeps the pad surface clean and the bite consistent
• Spring clips and Belleville washers that let the ring float like a race rotor without rattling when cold on the street
• Hats, rings and drive pins machined in-house in Bellingham, Washington, from domestically sourced material; cadmium-plated steel drive pins for corrosion resistance

What's Included

Two assembled front rotors, one per side, each ring already mounted to its hat. Pads are not included. The factory calipers are reused.

Specifications

Fitment notes

For the CT4-V Blackwing with factory iron front brakes only. It does not fit the standard CT4-V (non-Blackwing) or CT4 models. The CT4-V Blackwing was built for the 2022 through 2026 model years. Bed new pads and rotors in before track use.

Fitment