Mercedes-AMG GTS GTC GTR Girodisc Racing Rotors A1-123 A2-148
For SaleBrakes
Oct 25, 2024, 10:36 AM | Replies: 7 | Views: 1125
-
Price
$1,275• OBO
- Location Saddle River, NJ, 07458, USA
- Condition Used
Description:
The Girodisc system is a direct replacement for the OE iron discs on the AMG GTS, GTC, and GTR, requiring no modifications. These rotors bolt directly to the car and fit perfectly with OE calipers. Upgrading with lightweight, high-performance discs rather than a full big brake kit reduces rotational and unsprung weight, improving both acceleration and suspension response. Plus, your factory brake bias and ABS efficiency remain intact.
Each rotor features a central hat section made from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the disc itself is crafted from Girodisc’s proprietary cast iron, poured in the USA and fully machined in-house. The curved vane design, adapted from racing, acts as a centrifugal pump to cool the rotor. When it’s time for replacements, you can keep the aluminum hats and change just the discs, saving over 35% on the cost of new rotors.
The rotor’s disc and hat connect via a floating mount system, utilizing 12 pins for the front and 10 for the rear, all made from high-strength alloy steel and cadmium plated for corrosion resistance. These pins handle braking loads while allowing the rotor to expand and contract with temperature changes, reducing rattle with anti-noise spring washers. This system also allows the rotor to self-center between the brake pads.
Specifications:
- Front Rotors: P/N A1-123, 390mm diameter, 36mm new (replace at 34mm). MSRP: $1500 (Disc $1000, Reusable Hat $500)
- Rear Rotors: P/N A2-148, 360mm diameter, 26mm new (replace at 24mm). MSRP: $1400 (Disc $850, Reusable Hat $550)
This set is in excellent condition with over 50% rotor life remaining:
- Front: 35.31mm and 35.24mm
- Rear: 25.05mm and 25.25mm
Shipping:
Sold as a complete package (no partial sales) and ships within the 48 mainland U.S. states in two boxes:
- Front rotors: 59 lbs total
- Rear rotors: 35 lbs total
- Total shipping weight: 94 lbs
If you are looking for strong, aggressive grip on track days, when rotors are running hot, and smooth but better than OE,daily or spirited driving when rotors are cooler, look into the PAGID RSL 29 Endurance Racing Brake Pads: Front 8238, Rear 8246.
Last edited by G. P; Oct 25, 2024 at 12:29 PM.
Reply
Thread Starter
Joined: Mar 2020
Posts: 591
Likes: 341
From: Northeast USA
2020 AMG GTC
Thank you for your interest! I've applied an additional discount for MBWorld members ($1275). This set is listed on eBay for $1495 ( Mercedes-AMG GTS GTC GTR Girodisc Racing Rotors A1-123 A2-148 | eBay )
I can do $1200 and you pay for shipping.
I can do $1200 and you pay for shipping.
Thread Starter
Joined: Mar 2020
Posts: 591
Likes: 341
From: Northeast USA
2020 AMG GTC
The Girodisc system is a direct replacement for the OE iron discs on the AMG GTS, GTC, and GTR, requiring no modifications. These rotors bolt directly to the car and fit perfectly with OE calipers. Upgrading with lightweight, high-performance discs rather than a full big brake kit reduces rotational and unsprung weight, improving both acceleration and suspension response. Plus, your factory brake bias and ABS efficiency remain intact.
Each rotor features a central hat section made from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the disc itself is crafted from Girodisc’s proprietary cast iron, poured in the USA and fully machined in-house. The curved vane design, adapted from racing, acts as a centrifugal pump to cool the rotor. When it’s time for replacements, you can keep the aluminum hats and change just the discs, saving over 35% on the cost of new rotors.
The rotor’s disc and hat connect via a floating mount system, utilizing 12 pins for the front and 10 for the rear, all made from high-strength alloy steel and cadmium plated for corrosion resistance. These pins handle braking loads while allowing the rotor to expand and contract with temperature changes, reducing rattle with anti-noise spring washers. This system also allows the rotor to self-center between the brake pads.
Specifications:
This set is in excellent condition with over 50% rotor life remaining:
Shipping:
Sold as a complete package (no partial sales) and ships within the 48 mainland U.S. states in two boxes:
If you are looking for strong, aggressive grip on track days, when rotors are running hot, and smooth but better than OE,daily or spirited driving when rotors are cooler, look into the PAGID RSL 29 Endurance Racing Brake Pads: Front 8238, Rear 8246.
Each rotor features a central hat section made from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the disc itself is crafted from Girodisc’s proprietary cast iron, poured in the USA and fully machined in-house. The curved vane design, adapted from racing, acts as a centrifugal pump to cool the rotor. When it’s time for replacements, you can keep the aluminum hats and change just the discs, saving over 35% on the cost of new rotors.
The rotor’s disc and hat connect via a floating mount system, utilizing 12 pins for the front and 10 for the rear, all made from high-strength alloy steel and cadmium plated for corrosion resistance. These pins handle braking loads while allowing the rotor to expand and contract with temperature changes, reducing rattle with anti-noise spring washers. This system also allows the rotor to self-center between the brake pads.
Specifications:
- Front Rotors: P/N A1-123, 390mm diameter, 36mm new (replace at 34mm). MSRP: $1500 (Disc $1000, Reusable Hat $500)
- Rear Rotors: P/N A2-148, 360mm diameter, 26mm new (replace at 24mm). MSRP: $1400 (Disc $850, Reusable Hat $550)
This set is in excellent condition with over 50% rotor life remaining:
- Front: 35.31mm and 35.24mm
- Rear: 25.05mm and 25.25mm
Shipping:
Sold as a complete package (no partial sales) and ships within the 48 mainland U.S. states in two boxes:
- Front rotors: 59 lbs total
- Rear rotors: 35 lbs total
- Total shipping weight: 94 lbs
If you are looking for strong, aggressive grip on track days, when rotors are running hot, and smooth but better than OE,daily or spirited driving when rotors are cooler, look into the PAGID RSL 29 Endurance Racing Brake Pads: Front 8238, Rear 8246.
Thread Starter
Joined: Mar 2020
Posts: 591
Likes: 341
From: Northeast USA
2020 AMG GTC
Description:
The Girodisc system is a direct replacement for the OE iron discs on the AMG GTS, GTC, and GTR, requiring no modifications. These rotors bolt directly to the car and fit perfectly with OE calipers. Upgrading with lightweight, high-performance discs rather than a full big brake kit reduces rotational and unsprung weight, improving both acceleration and suspension response. Plus, your factory brake bias and ABS efficiency remain intact.Each rotor features a central hat section made from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the disc itself is crafted from Girodisc’s proprietary cast iron, poured in the USA and fully machined in-house. The curved vane design, adapted from racing, acts as a centrifugal pump to cool the rotor. When it’s time for replacements, you can keep the aluminum hats and change just the discs, saving over 35% on the cost of new rotors.
The rotor’s disc and hat connect via a floating mount system, utilizing 12 pins for the front and 10 for the rear, all made from high-strength alloy steel and cadmium plated for corrosion resistance. These pins handle braking loads while allowing the rotor to expand and contract with temperature changes, reducing rattle with anti-noise spring washers. This system also allows the rotor to self-center between the brake pads.
Specifications:
- Front Rotors: P/N A1-123, 390mm diameter, 36mm new (replace at 34mm). MSRP: $1500 (Disc $1000, Reusable Hat $500)
- Rear Rotors: P/N A2-148, 360mm diameter, 26mm new (replace at 24mm). MSRP: $1400 (Disc $850, Reusable Hat $550)
This set is in excellent condition with over 50% rotor life remaining:
- Front: 35.31mm and 35.24mm
- Rear: 25.05mm and 25.25mm
Shipping:
Sold as a complete package (no partial sales) and ships within the 48 mainland U.S. states in two boxes:
- Front rotors: 59 lbs total
- Rear rotors: 35 lbs total
- Total shipping weight: 94 lbs
If you are looking for strong, aggressive grip on track days, when rotors are running hot, and smooth but better than OE,daily or spirited driving when rotors are cooler, look into the PAGID RSL 29 Endurance Racing Brake Pads: Front shape# 8238, Rear shape# 8246.
Last edited by G. P; Apr 3, 2025 at 11:48 AM.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
