A2-260 Girodisc Mercedes G63 Rear Rotors
The Girodisc A2-260 Rear Rotors are precision-engineered to replace the heavy factory discs on the Mercedes-Benz G63 AMG. Designed as a direct bolt-on upgrade with no modifications required, these 2-piece floating rotors provide exceptional braking performance while shedding significant unsprung and rotational weight. The result is sharper acceleration, improved suspension response, and reduced heat buildup during aggressive driving.
Lightweight, High-Performance Construction
Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary cast iron outer ring, manufactured in the USA. This combination reduces each rotor’s weight by approximately 8.1 pounds compared to stock (16.6 lbs vs. 24.7 lbs), dramatically improving responsiveness without compromising braking efficiency. The high-carbon iron construction ensures optimal thermal stability and consistent performance under repeated heavy braking.
Advanced Cooling and Floating Design
The rotors incorporate a curved vane design developed from motorsport applications, functioning like a centrifugal pump to force cooling air through the disc. Girodisc’s floating mount system uses 10 cadmium-plated steel drive pins secured with class 12.9 cap screws and hardened washers. This design allows the disc to expand radially under high temperatures without distortion while anti-noise spring washers ensure quiet street operation.
Vehicle Fitment
- Mercedes-Benz G63 AMG (all variants with factory iron rotors)
- Direct bolt-on replacement for OEM rear rotors
- No modifications or additional hardware required
Technical Specifications
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CMS Number: A2-260
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Position: Rear
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Design: 2-piece floating rotor assembly
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Material: Proprietary cast iron ring with 6061-T6 aluminum hat
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Vane Design: Curved internal vanes for improved cooling
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Weight Savings: ~8.1 lbs per rotor
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Hardware: Cadmium-plated steel drive pins with anti-noise washers
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Rebuildable: Yes — reusable hat with replacement rings
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Sold/Price: Per pair
FAQs for Girodisc A2-260
Do these rotors fit without modification? Yes, the Girodisc A2-260 rear rotors bolt directly to the G63 AMG hub and work perfectly with factory calipers.
What benefits do these provide over OEM rotors? They reduce unsprung mass, enhance cooling, and maintain brake balance and ABS efficiency while delivering faster suspension response.
Are these rotors noisy? No. The anti-noise spring washers eliminate rattle while allowing proper float for thermal expansion.
Can the rotor rings be replaced? Yes. Girodisc rotors are fully rebuildable—just replace the rings when worn and reuse the hats and hardware.
Upgrade your Mercedes G63 AMG with Girodisc’s lightweight, rebuildable rear rotors—engineered to deliver superior cooling, reduced weight, and exceptional braking consistency on both road and track.
