VW / Audi MQB 340mm Front Rotors (Girodisc A1-171)
The Girodisc 340mm Front Rotor set for VW and Audi MQB-platform cars delivers a precise, high-performance upgrade over factory rotors without the cost or complexity of a full big brake kit. Each rotor is a direct bolt-on replacement that retains full compatibility with factory calipers and brake bias, while reducing both rotational and unsprung mass for sharper handling and improved acceleration.
Precision-Engineered Two-Piece Design
Weighing approximately 20.3 lbs each compared to 23.8 lbs for the OEM rotors, this Girodisc system reduces weight exactly where it matters. The central hat is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, paired with Girodisc’s proprietary cast iron rotor ring poured and machined entirely in the USA. The rotor’s curved vane internal design acts as a centrifugal pump, forcing cooling air through the rotor to maintain consistent braking under high temperatures.
Vehicle Fitment
This 340mm Girodisc rotor set fits a wide range of MQB-platform VW and Audi vehicles, including:
- Volkswagen Golf R (MK7 / MK7.5)
- Volkswagen GTI Performance Package / Clubsport
- Volkswagen GTI TCR
- Audi S3 (8V)
- Audi TT-S (8S)
- Audi A3 with 340mm front brakes
If you are unsure of compatibility, please verify your vehicle’s factory rotor size before ordering.
Features
- Direct replacement for OEM 340mm rotors; no adapters or spacers required.
- Two-piece floating rotor design reduces unsprung and rotational weight.
- Proprietary cast iron friction rings with 6061-T6 aluminum hats for high heat resistance and rigidity.
- Curved vane internal design promotes effective cooling airflow.
- Floating mount system with ten high-strength alloy steel drive pins allows precise axial and radial float.
- Anti-noise spring washers eliminate rattle during street use while maintaining performance under heat expansion.
- Cadmium-plated hardware for long-lasting corrosion protection.
- Fully manufactured in the USA to motorsport standards.
Specifications
Rotor Diameter: 340mm
Weight: 20.3 lbs (each)
OEM Rotor Weight: 23.8 lbs (each)
Rotor Type: Two-piece floating
Material: Proprietary cast iron with 6061-T6 aluminum hat
Hardware: 10 alloy steel drive pins with spring washers
Sold as: Pair (left and right front rotors)
FAQs: VW / Audi MQB 340mm Front Rotors (Girodisc)
Do these rotors require caliper modifications? No, these are direct bolt-on replacements that retain factory calipers and brake pads.
How do these rotors improve braking performance? They reduce rotating mass, improve cooling efficiency, and maintain more consistent braking under high temperature conditions.
Are they noisy during normal driving? The anti-noise spring washers prevent rattle and vibration while preserving the floating design benefits during spirited or track use.
What maintenance is required? Only the cast iron friction rings need replacement when worn. The aluminum hats and hardware are reusable per Girodisc’s service recommendations.
Ordering Information
Sold and priced per pair. Includes left and right Girodisc 340mm front rotors for VW and Audi MQB-platform vehicles.
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Features
- Direct replacement for the OEM 340mm front discs; no modifications or adapters required.
- Two-piece floating construction for reduced unsprung weight and faster suspension response.
- 6061-T6 aluminum hat and proprietary cast iron rotor ring for optimal strength and heat management.
- Curved vane design improves airflow and cooling efficiency during repeated heavy braking.
- Floating mount system with ten high-strength alloy steel drive pins allows axial and radial float to reduce stress and distortion.
- Spring washers eliminate the rattle typically associated with floating rotors while allowing thermal expansion.
- Class 12.9 hardware and cadmium-plated pins resist corrosion for long-term durability.
- Designed, cast, and machined entirely in the USA to Girodisc’s exacting motorsport standards.
Specifications
Rotor Diameter: 340mm
Weight: 20.3 lbs (each)
OEM Rotor Weight: 23.8 lbs (each)
Rotor Type: Two-piece floating
Material: Proprietary cast iron with 6061-T6 aluminum hat
Hardware: 10 alloy steel drive pins with spring washers
Fitment: VW / Audi MQB-platform vehicles with 340mm front brakes
Sold as: Pair (left and right front rotors)
FAQs: VW / Audi MQB 340mm Front Rotors (Girodisc)
What vehicles are these rotors compatible with? These fit VW and Audi MQB-platform vehicles equipped with 340mm front brakes, such as the Golf R, GTI Performance Pack, Audi S3, and other compatible models.
Do these rotors require caliper spacers or new pads? No, they are a direct bolt-on replacement that uses your existing calipers and OEM pad shape.
How do these improve braking performance? The Girodisc system reduces weight, improves airflow through the curved vane design, and enhances temperature stability for better consistency under heavy braking.
Are they noisy during street driving? No. The floating pins are mounted with anti-noise spring washers that eliminate rattle while maintaining full float functionality under heat.
How is maintenance handled? Once installed, only the cast iron rings need to be replaced when worn. The aluminum hats and hardware can be reused following Girodisc service recommendations.
Ordering Information
Sold and priced per pair. Includes left and right front Girodisc 340mm rotors for VW and Audi MQB vehicles. Direct bolt-on fit with OEM calipers.
