2021-2026+ Audi e-tron GT / RS e-tron GT Carbon Ceramic Brake Rotors
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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Will This Fit My Car?
Direct Replacement CCB Discs (Retain Factory Calipers) for the 2021-2026+ Audi e-tron GT / RS e-tron GT. Factory rotor specifications and the smallest wheel that clears each trim:
| Trim | Front Rotor (Factory) | Rear Rotor (Factory) | Min. Wheel Size |
|---|---|---|---|
| RS e-tron GT | 420mm, 440mm (CCB) | 390mm, 400mm (CCB) | 22" |
| e-tron GT | 400mm | 380mm | 20" |
Keep Your Factory Calipers?
Keep them if the front calipers are fixed 4-piston or more — the rear axle qualifies regardless. Front 1- or 2-piston floating calipers rule out the disc-only route; choose the Full Upgrade kit instead. Every set is machined to the factory rotor specs listed above, and aftermarket calipers (Brembo, AP Racing, Alcon, Wilwood) only need the caliper model, pad shape, and rotor dimensions confirmed before we build.
Spoke profile and offset also affect clearance — confirm your exact wheels before ordering.
What's in the Box
| Item | Details |
|---|---|
| Product type | Direct Replacement CCB Discs (Retain Factory Calipers) |
| CCB rotors | Full-car set by default, built to the factory rotor specification |
| CCB brake pads | Matched ceramic-compatible compound for StopFlex carbon ceramic rotors |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment; custom rotor hat colors available for every Direct Replacement order. |
| Stainless floating hardware | Full-car hardware set |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
Why Carbon Ceramic — and Why StopFlex
Premium Ceramic-Glaze Finish
StopFlex's proprietary coating gives the disc a bright ceramic-glaze surface with subtle texture — the factory carbon-ceramic look, clearly visible through open wheel designs.
Continuous Fiber Construction
StopFlex discs are built with long continuous carbon fiber instead of chopped short fiber. Continuous strands carry load across the whole rotor body, raising strength and thermal durability under heat cycles.
Bespoke Per-Vehicle Engineering
Every order is machined to the confirmed vehicle and trim. Brackets, hat offsets, and pad shapes are built for that exact car — never pulled from a one-size-fits-all catalog.
CCB-Specific Pad Compound
A low-metallic resin pad compound reinforced with steel, copper, and aramid fiber, made for ceramic discs: stable to about 750 °C, roughly 0.44 average friction, strong fade resistance, low rotor wear.
Lower Unsprung Mass
A carbon-ceramic rotor weighs roughly half of the equivalent iron disc. Less rotating, unsprung mass lets the suspension follow broken pavement more cleanly and makes steering response noticeably sharper.
High-Temperature Stability
The carbon-silicon-carbide friction matrix keeps working at temperatures that push iron rotors into heavy fade, so the tenth hard stop feels like the first — same pedal travel, same bite point.
Rust-Free Rotor Surface
Ceramic discs cannot flash-rust. After rain, a wash, or weeks of parking, the rotor face behind your open-spoke wheels stays clean — no orange ring on a freshly detailed car.
Long Street-Service Life
In normal road use with matched pads and correct bedding, one StopFlex CCB rotor set is engineered to outlast several sets of iron replacement rotors, recovering part of the up-front cost.
Low Visible Dust
Matched with StopFlex pads, the system sheds a fraction of the dust an iron rotor and pad combination throws. Wheels stay clean for weeks of driving instead of days.
Winter & Cold-Weather Braking
Winter question, straight answer: untuned ceramic discs bite less when cold. StopFlex optimized the pad compound and the rotor's ceramic coating for cold operation, so cold-start braking in winter feels very close to warm-weather braking. Extra following distance on freezing first stops is still smart; severe-winter daily cars should run Street Spec.
Choose Your Rotor: Street, Track-Day, or Motorsport
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.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat still soaks 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.
Get Your Fitment Confirmed
Share your year, model, trim, wheel size, current rotor dimensions, and caliper type — every order is verified against your VIN-level configuration before it goes to production.
FAQ
Which e-tron GT trims and rotor sizes does this kit actually fit?
This page covers the e-tron GT and RS e-tron GT built 2021-2026+. On the RS e-tron GT we replace the 420mm or 440mm CCB front discs and 390mm or 400mm CCB rear discs; on the e-tron GT we cover the 400mm front and 380mm rear. You must match the exact rotor diameter stamped on your current discs to the version you order. Direct Replacement is only valid when your front calipers are 4-piston or larger, which the CCB-equipped RS e-tron GT and larger e-tron GT setups use. Rear is unrestricted.
How do these carbon-ceramic discs behave on a cold winter morning?
Honest answer: a cold carbon-ceramic disc naturally bites less than cold iron on the first stop or two. That's physics, not a fault. We addressed it directly by tuning both the low-metallic resin-composite pad compound and the disc's ceramic surface coating for cold-start engagement, so your winter cold-car pedal feel now comes very close to summer feel. On the coldest first stops of the day, still leave a little extra following distance until the front rotors warm—same sensible habit any CCB owner already knows.
Do I keep my factory calipers, or does this replace the whole brake system?
You keep the factory Audi calipers. This is a Direct Replacement disc kit: carbon-ceramic rotors, matched pads, hats, and floating hardware that bolt to your existing calipers and hubs. That's what keeps the cost far below a full dealer CCB replacement—you're not paying to re-buy calipers you already own. Fitment requires 4-piston or larger front calipers, which is what the CCB e-tron GT and RS e-tron GT run.
Is this compatible with the electronic parking brake, and what wheels do I need?
Yes. The e-tron GT / RS e-tron GT uses an electric parking brake acting through the rear caliper, and our rear discs and hardware retain that function—no separate drum-in-hat or extra actuator needed. For wheel clearance, keep the factory wheel diameter that came with your CCB package (the 420-440mm front discs on the RS require the larger factory wheel sizing); don't drop to a smaller aftermarket wheel that clears an iron rotor but not a ceramic hat.
More Contact Information
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