A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors
Give your BMW G87 M2, G80 M3, or G82 M4 the braking power it deserves with the Girodisc A2-282 2-piece rear rotors. These 370mm rotors are a direct replacement for the OEM rear iron rotors and are designed to improve heat dissipation, reduce unsprung weight, and deliver consistent performance under aggressive driving conditions.
Track-Tested 2-Piece Rear Rotors for Your G8X
FITMENT: BMW G87 M2, G80 M3, G82 M4 with 370mm rear iron rotors
The Girodisc A2-282 rotors feature a lightweight aluminum hat bolted to a high-carbon cast iron rotor ring using a floating mount system. This setup allows for superior thermal expansion, reduced risk of cracking, and quick recovery from high temperatures—ideal for both spirited street driving and track use.
The slotted face and 72 curved internal vanes pull cool air through the rotor, improving pad bite and minimizing brake fade. These rotors are fully compatible with factory calipers and pad shapes, so installation is easy—no modifications or special hardware required.
When the rings eventually wear down, simply install D2-282 replacement rings and reuse the hats to minimize long-term maintenance costs.
Sold and priced per pair.
A2-282 Rear Rotor Features:
Direct replacement for OEM 370mm rear rotors
Fully compatible with factory calipers and brake pads
2-piece floating design reduces unsprung weight
High-carbon alloy rotor rings with curved vane cooling
Lightweight anodized 6061-T6 aluminum rotor hats
Reusable hats pair with D2-282 replacement rings
Made in the USA from high-quality domestic materials
A2-282 Rear Rotor FAQs:
Do I need new calipers or pads? No, the A2-282 rotors are designed to bolt right up using your factory hardware and brake pads.
Can I use these on the street? Yes, they’re quiet and smooth enough for daily driving while offering the cooling and durability needed for track use.
How do these compare to OEM rotors? They offer improved cooling, reduced weight, and replaceable rings for longer service life.
When should I replace the rings? Replace them when they reach the minimum thickness or show signs of cracking. Use D2-282 replacement rings with the original hats.
Whether you’re lapping your G8X on the weekend or just want race-grade stopping power on the road, the Girodisc A2-282 rear rotors offer the perfect balance of performance, longevity, and precision engineering.
