2021-2026+ Audi e-tron GT / RS e-tron GT Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2021-2026+ Audi e-tron GT / RS e-tron GT Carbon Ceramic Brake Kit — OEM-Size Replacement
The J1 Audi e-tron GT and RS e-tron GT put high vehicle mass, regenerative blending, and large fixed-caliper friction brakes on the same rotor package, so owners usually shop carbon ceramic when the factory iron setup dusts heavily or an OEM ceramic rotor is too expensive to replace. This StopFlex OEM-size kit matches the listed factory rotor envelopes: e-tron GT 400 mm front / 380 mm rear, RS e-tron GT 420 mm or 440 mm front and 390 mm or 400 mm rear carbon-ceramic applications. The kit includes carbon-ceramic rotors, pads, hats, and floating hardware so the order can be built around the exact trim and rotor size already on the car.
- Built only for the listed J1 e-tron GT / RS e-tron GT rotor sizes: 400 mm front and 380 mm rear for e-tron GT, or 420/440 mm front and 390/400 mm rear for RS e-tron GT carbon-ceramic fitments.
- Carbon-ceramic discs reduce brake dust on the e-tron GT’s large open wheels and remove rotating mass from a heavy 800V EV chassis without changing the OEM-size brake layout.
- Floating hats and hardware are included to manage thermal expansion across repeated high-energy stops from the RS e-tron GT’s large front brake package.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi e-tron GT / RS e-tron GT |
| Model years | 2021-2026+ |
| Front rotor reference | RS e-tron GT: 420mm, 440mm (CCB); e-tron GT: 400mm |
| Rear rotor reference | RS e-tron GT: 390mm, 400mm (CCB); e-tron GT: 380mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 21" (for the 420 mm rotor) |
For OEM replacement orders, StopFlex builds around the factory rotor specification shown for this vehicle. Front floating-caliper setups require manual review before production. If the car uses aftermarket calipers such as Brembo, AP Racing, Alcon, or Wilwood, the order can still be built, but the exact caliper model, pad shape, and rotor dimensions must be confirmed before production.
This setup uses a 420 mm rotor, so the minimum wheel size is 21". Wheels under 21" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Custom Rotor Hat Color
Every StopFlex OEM replacement order can be built with a custom rotor hat color, giving the carbon ceramic rotor package a cleaner match with the wheel, body color, and overall build style.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| CCB rotors | Full-car set by default |
| CCB brake pads | Matched for StopFlex carbon ceramic rotors |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment |
| Stainless floating hardware | Full-car hardware set |
| Rotor hat color | Custom rotor hat colors are available for every OEM replacement order. |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
FAQ
Will this kit fit every 2021-2026+ Audi e-tron GT or RS e-tron GT?
No. This page is limited to the exact trims and rotor sizes listed: e-tron GT 400 mm front / 380 mm rear, and RS e-tron GT 420 mm or 440 mm front with 390 mm or 400 mm rear carbon-ceramic applications. Confirm the rotor diameter and brake option on your car before ordering.
Does the kit keep the factory parking brake and auto-hold functions?
Yes, when ordered for the correct rear rotor configuration, the kit is designed as an OEM-size replacement and retains the Audi rear parking-brake arrangement. The rear size must match the car’s original e-tron GT or RS e-tron GT brake package.
Why replace the factory iron brakes with carbon ceramic on an e-tron GT?
The e-tron GT is a heavy performance EV, so high-speed stops put substantial heat into the friction brakes even with regenerative braking. Carbon ceramic rotors reduce dust, resist heat-related fade, and lower rotating mass compared with iron rotors in the same OEM-size layout.
What should I confirm before ordering?
Confirm model year, trim, front and rear rotor diameters, whether the car already has Audi carbon-ceramic brakes, wheel size and clearance, and the rear parking-brake configuration. Compatibility is determined by those details, not by the e-tron GT badge alone.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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