2022-2026+ BMW iX (I20) Carbon Ceramic Big Brake Kit — Brembo GT6 6-Piston
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?
Full Upgrade CCB Big Brake Kits (With Calipers) for the 2022-2026+ BMW iX (I20). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2022-2026+ |
Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 mm rotor Option 2: Brembo GT | M6 6-Piston Caliper — 380 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 380 mm rotor |
Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 355/380 mm rotor Option 2: Brembo GT | M4 4-Piston Caliper — 355/380 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 355/380 mm rotor |
19" |
This kit is built per car, not per platform. We engineer the brackets, rotor-hat offsets, and caliper mounting to your confirmed model and trim, because trims sharing a chassis name frequently differ underneath — performance variants can run different knuckles, hub geometry, and wheel ET clearance than their standard siblings. You receive calipers, pads, rotor hats, floating hardware, and brake lines as one matched, trim-specific system. Cars with modified knuckles, uprights, or non-factory suspension mounting points need review before ordering.
The 380 mm rotor sets the minimum wheel size at 19" — smaller wheels will not clear the caliper and rotor. Spoke profile and offset also affect clearance; confirm your exact wheels before ordering.
| Wheel Size (Standard) | Disc Range |
|---|---|
| 15" | 260 mm – 285 mm |
| 16" | 285 mm – 300 mm |
| 17" | 300 mm – 330 mm |
| 18" | 330 mm – 355 mm |
| 19" | 355 mm – 380 mm |
| 20" | 380 mm – 400 mm |
| 21" | 400 mm – 420 mm |
| 22" | 420 mm – 440 mm |
What's in the Box
| Item | Details |
|---|---|
| Product type | Full Upgrade CCB Big Brake Kits (With Calipers) |
| Front calipers |
Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 mm rotor OE / Part No.: L 172-2521 · R 172-2522 Option 2: Brembo GT | M6 6-Piston Caliper — 380 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 380 mm rotor |
| Rear calipers | Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 355 / 380 mm rotor Option 2: Brembo GT | M4 4-Piston Caliper — 355 / 380 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 355 / 380 mm rotor OE / Part No.: L 172-2523 · R 172-2524 |
| CCB brake pads | Matched ceramic-compatible compound for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Order scope | Default listing is full-car set when front and rear are specified. Front-only or rear-only orders can be arranged after confirmation. |
Make It Yours — Color & Logo Customization
Any kit order can be personalized: custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the hardware behind your wheels matches the rest of the build.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why Carbon Ceramic — and Why StopFlex
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.
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.
Winter & Cold-Weather Braking
A cold, untuned carbon-ceramic disc needs more pedal than iron on the first winter stops — normal material physics. StopFlex engineered the pad formula and disc coating specifically for cold starts, closing that gap: cold-car winter feel is now very close to summer feel. Keep a little extra distance on the coldest mornings; for harsh winters, choose Street Spec.
Caliper Overview
Front Caliper
The front is Brembo's V6 / GT6 / GTS6 6-piston caliper family, clamping a 380 mm carbon-ceramic rotor. You pick the exact option — V6 (OEM Cadillac CTS-V casting), GT6 (GT | M6), or GTS6 (GT | S6) — and all three hold a firm, repeatable pedal on a heavy iX under repeated hard stops.
Rear Caliper
The rear runs a Brembo V4 / GT4 / GTS4 4-piston caliper on a 355 or 380 mm rotor, adding balanced rear thermal capacity so the fronts aren't doing all the work on a 2.5-ton EV. The iX uses an electric parking brake, so we integrate an EPB-compatible rear solution matched to your confirmed trim.
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
High rotor temperature tolerance does not mean heat management disappears. Under repeated hard braking, heat migrates into the pads, brake fluid, seals, calipers, and wheels even when the ceramic disc itself is comfortable. Plan brake cooling and high-temperature fluid for extended track sessions, long mountain descents, or sustained aggressive driving.
Get Your Fitment Confirmed
Before ordering, tell us the exact vehicle, current rotor sizes, and caliper type. Nothing goes to production until the build is confirmed against your VIN-level configuration.
FAQ
How do these brakes feel on a cold winter morning?
A cold carbon-ceramic disc naturally bites a little less than cold iron on the very first stops — that's physics, not a fault. We've tuned both the low-metallic pad compound and the disc's ceramic coating for cold starts, so on the iX the first-stop feel now comes very close to summer feel. On the coldest days, leave a bit of extra following distance for the first one or two stops until everything is up to temperature.
Will this kit fit my exact iX trim?
Each kit is engineered for your confirmed trim — xDrive50, M60, or M70. The M70 and standard cars can differ in knuckle geometry, hub setup, and wheel clearance, so we cut brackets and set rotor-hat offsets to your specific car. We do not sell a platform-wide bolt-on; we build to your VIN-confirmed configuration.
What wheels do I need to clear the 380 mm front rotors?
The front rotor is 380 mm, so 19-inch is the minimum wheel diameter — anything smaller will not clear the caliper. Spoke shape matters too, not just the diameter, so send us your wheel details and we'll confirm clearance before you buy.
Does the electric parking brake still work with this kit?
Yes. The iX's electronic parking brake is retained. We match the rear V4 / GT4 / GTS4 caliper and rotor sizing (355 or 380 mm) to keep the EPB fully functional on your trim, with the correct actuation integrated into the bracket and caliper choice.
More Contact Information
We’re here to help! Whether you need expert advice on brake setups, have questions about your order, or just want to share feedback, our team is ready to assist you. Reach out via your preferred channel below, or use the inquiry form.
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