034 Motorsport 2-Piece Floating Rear Brake Rotor Upgrade for Audi C8 RS6 & RS7 (2019+)
034 Motorsport 2-Piece Floating Rear Brake Rotor Upgrade for Audi C8 RS6 & RS7 (2019+)
TAG Motorsports is pleased to offer the 034 Motorsport 2-Piece Floating Rear Brake Rotor Upgrade for the Audi C8 RS6 & RS7.
Product Description:
The 034Motorsport 370mmx30mm 2-Piece Floating Rear Brake Rotor Upgrade for Audi C8 RS6 & RS7 is a complete replacement brake rotor, designed to work flawlessly with the factory rear calipers. Upgrading your rear rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long!
Weighing in at approximately 22.7lbs, each rotor reduces rotational weight by 2lbs on each corner over the factory 24.7lb rotors! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 72 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.
The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminum. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form. From the factory, the same straight-vaned rotor is used on both rear axles of the C8 RS6 & RS7. 034Motorsport rotors utilize 72 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat and are unique to the left and right axles to provide a substantial increase in cooling efficiency over the factory rotor design.
The face of the rotor utilizes J-Slot slots to clean the pad and surface of contaminants and allows hot pad outgassing, all while reducing overall braking noise compared to a traditional slotted rotor.
The rotor and hat have a floating mount system that utilizes high-strength alloy steel bobbins. The pins take the load from braking actions while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat.
Temperature-Indicating Paint Marks:
034Motorsport 2-Piece Performance Brake Rotors feature temperature-indicating paint marks on the rotor edge that provide a quick visual reference for heat exposure during aggressive street driving, autocross, or track use.
The paint changes color at specific temperature thresholds to help drivers understand operating conditions:
- Green → White at 478°C (892°F)
- Orange → Yellow at 571°C (1060°F)
- Red → White at 640°C (1184°F)
If the red paint turns white throughout, the rotors are consistently operating beyond their intended temperature range. This may indicate the need for lower-friction brake pads or improved cooling
Buyer’s Guide:
Brake Rotor Comparison Chart:
| Feature / Use Case | Stock C8 RS6/RS7 Rotors | 034Motorsport 2-Piece Floating Rotors |
|---|---|---|
| Rotor Design | Semi-Floating 2-Piece Rotor | Floating 2-Piece Rotor |
| Internal Vane Design | Incorrect Directional Veins | 72 Directional Curved Vanes |
| Cooling Efficiency | Moderate | Very High |
| Rotor Material | OEM Cast Iron | CM-250 Special Alloy Rotor Rings |
| Hat Construction | Integrated Iron Hat | 6061-T6 Aerospace Aluminum Hat |
| Weight | 24.7lb OE Rotor | 22.7lb Lightweight Rotor |
| Heat Resistance | Good | Maximum |
| Warping Resistance | Moderate | Very High |
| Friction Face Design | OEM Drilled Face | J-Slotted Friction Face |
| Pad Degassing & Debris Removal | Moderate | Excellent |
| Floating Hardware | No | Yes – Floating Bobbin System |
| Replaceable Rotor Rings | No | Yes |
| Long-Term Maintenance Cost | Higher Full Rotor Replacement Cost | Lower Replacement Ring Cost |
| Street Driving | ✓✓ | ✓✓✓ |
| Spirited / Canyon Driving | ✓ | ✓✓✓ |
| Autocross / HPDE | Limited | ✓✓✓ |
| Frequent Track Use | Not Ideal | Designed For It |
| Best For | Daily Driving & Occasional Spirited Use | High-Performance Street & Track Driving |
Features:
- Lightweight Construction (22.7.3lb 034Motorsport Rotor vs. 24.7lb OE Audi Rotor)
- Floating, 2-Piece Design
- 6061-T6 Billet Aluminum Hats
- Aerospace Grade Aluminum Hats
- CM-250 Special Alloy Rotor Rings
- J-slotted Friction Face
- OEM Fitment & Functionality
- Temperature Indicating Paint Marks on Rotor Edge:
- Green changes to white at 478° C (892° F)
- Orange changes to yellow at 571° C (1060° F)
- Red changes to white at 640° C (1184° F)
- If the Red paint turns white throughout, the rotors are running too hot.
- 72 Curved Vanes Force Cooling Air through Brake Disc (OE rotors use incorrect directional vanes)
- Floating Bobbins Mounting System
- Replaceable Rotor Rings
- Lower Long-term Maintenance Cost
OE Part Interchange:
- 4K0 615 601 A
What's Included:
- 370x30 Left Rotor
- 370x30 Right Rotor
- Installation and Break-in Instruction Sheets
034Motorsport part number: 034-301-2026
Fits: 2019+ Audi RS6 (C8) 4.0 TFSI; 2019+ Audi RS7 (C8) 4.0 TFSI
| SKU | 034-301-2026 |
|---|---|
| Brand | 034 Motorsports |
| Exhaust Tip Size | 90mm |
PROP65 WARNING
PROP 65 WARNING – Products sold by TMS such as lead acid batteries contain lead, which is known to the
state of California to cause cancer and birth defect or other reproductive harm. Safety Data Sheets for
products sold by TMS are available upon request.
For more information go to:
www.p65warnings.ca.gov/fact-sheets/lead-and-lead-compounds
| Many Items Are In-Stock. Up-to 2-4 Weeks for Items Not In-Stock. |