GiroDisc D2-171 310 mm Rear Rotor Rings for 2012-2025 VW / Audi MQB & TT-RS Cars

Vehicle Fitment

• Volkswagen Golf R (Mk7 / Mk7.5 / Mk8) - 2012-2025, rear axle (with GiroDisc 310 mm rear rotor setup)
• Volkswagen GTI - with Performance Package (Mk7 / Mk8), 2015-2025, rear axle (with GiroDisc 310 mm rear rotor setup)
• Audi S3 (8V / 8Y), 2015-2025, rear axle (with GiroDisc 310 mm rear rotor setup)
• Audi RS3 (8P / 8V / 8Y), 2011-2025, rear axle (with GiroDisc 310 mm rear rotor setup)
• Audi TT RS (8J / 8S), 2012-2023, rear axle (with GiroDisc 310 mm rear rotor setup)
• Audi TTS (8S), 2014-2023, rear axle (with GiroDisc 310 mm rear rotor setup)

Features

• 310 mm high-carbon cast-iron replacement rotor rings - restores proper rear braking surface for GiroDisc two-piece setups
• Slotted & vented design with curved-vane internal ventilation - improves airflow, cooling, and pad-gas/debris purge under heavy or repeated braking
• Sold as replacement rings only - reuses your existing GiroDisc aluminum "hat," keeping unsprung/rotational mass optimized
• Includes full floating-mount hardware (drive pins, bolts, washers / spring-clip fasteners) - ensures correct ring-to-hat attachment and rotor float for both sides
• Direct bolt-on replacement when used with original GiroDisc hats - no modifications, spacers or machining required
• Maintains original brake geometry, caliper fitment, brake bias, and ABS calibration - safe, predictable braking performance
• Improved fade resistance and thermal stability - ideal for spirited street driving, occasional track use, or any high-duty rear braking demand
• Cost-effective maintenance option - replace only worn rings instead of full rotor assemblies to extend service life and reduce long-term ownership costs

Specifications

• Part Number: D2-171
• Rotor Ring Diameter: 310 mm (rear axle)
• Material: High-carbon cast iron (rings only - no hats included)
• Rotor Type: Slotted & vented, curved-vane ventilated two-piece ring + hat system
• Mounting: Floating-mount via alloy-steel drive pins + required hardware (included)
• Sold As: Pair (rear left + rear right rings) including full floating-mount hardware set
• Compatibility Note: Requires existing GiroDisc 310 mm rear rotor hats - not compatible with OEM one-piece rotors or hats from other brands

Included Components

• 2x Rear rotor rings (left + right), 310 mm, slotted & vented cast-iron
• Full floating-mount hardware kit for both sides (drive pins, bolts, washers / spring clips / fasteners)

Product Description

The GiroDisc D2-171 rear rotor ring set is a direct-fit replacement for rear brakes on many VW/Audi MQB-platform and TT-RS vehicles when originally equipped with GiroDisc 310 mm two-piece rotors. It's ideal for Golf R, GTI (Performance-Pack), S3, RS3, TT RS, TTS and other compatible models manufactured between 2012 and 2025. Instead of replacing the full rotor assembly, D2-171 lets you reuse the original aluminum hats - saving weight and cost - while restoring a fresh cast-iron braking surface for improved performance and thermal capacity.

These replacement rings feature a slotted and vented face plus internal curved-vane ventilation to draw cooling air through the rotor under load, helping dissipate heat, purge pad gases and debris, and maintain strong, consistent braking even under repeated heavy use. The kit comes complete with new floating-mount hardware to ensure correct ring-to-hat attachment and rotor float, preserving brake geometry, pad alignment, and ABS function. For owners of supported VW/Audi models looking to refresh worn rear brakes without costly full-rotor replacements, GiroDisc D2-171 offers a practical, durable, and performance-ready solution.