BMW M3 (2021-) G80 Girodisc 380mm 2 Piece Front Rotors

Girodisc Front 2-Piece Rotors – BMW G87 M2 / G80 M3 / G82 M4 (A1-282)

Description

Upgrade your braking performance with the Girodisc A1-282 2-Piece Floating Front Rotor Set, engineered for the BMW G87 M2, G80 M3, and G82 M4. Designed as a direct replacement for OEM front discs, these lightweight, high-performance rotors are built for both spirited street use and heavy-duty track days.

The A1-282 rotors combine a high-carbon alloy cast iron rotor ring with a CNC-machined billet aluminum hat, reducing rotational and unsprung mass for better handling and quicker brake response. With advanced venting, floating bobbins, and rebuildable construction, these rotors deliver long-term performance and stopping power under extreme conditions.

Key Features

• ✅ Fitment:

  • BMW G87 M2 (2023+)

  • BMW G80 M3 (2021+)

  • BMW G82 M4 (2021+)

• 📏 Rotor Size: 380mm x 30mm – OEM replacement

• ⚙️ Design:

  • 2-piece floating rotor

  • High-carbon alloy cast iron outer ring

  • 6061-T6 billet aluminum center hat (black anodized)

• 🔩 Hardware: Floating bobbin system with anti-noise spring washers

• ❄️ Cooling: Curved vane internal structure for efficient heat dissipation

• 🇺🇸 Made in the USA

Performance Benefits

• 💨 Reduced Weight: Lighter than factory one-piece rotors for improved turn-in and suspension response

• 🏁 Superior Heat Management: Built to resist warping and fade under repeated hard braking

• 🔧 Serviceable Design: Replaceable rotor rings = cost-effective longevity

• 🔩 Direct Bolt-On: No modifications required; uses factory calipers and brake lines

In the Box

• 2x Girodisc A1-282 Front 2-Piece Rotors (Left & Right)

• Pre-installed floating hardware

• Installation instructions

Note:

• Compatible with OEM calipers

• Best paired with performance pads, stainless lines, and high-temp brake fluid

• Rear rotors (A2-282) available separately