2019-2026+ BMW X5 / X5 M (G05/F95) Carbon Ceramic Big Brake Kit — Akebono 10N Audi RS 10-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 2019-2026+ BMW X5 / X5 M (G05/F95). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2019-2026+ | Akebono OEM Audi RS 10-Piston (10N) Caliper / 420mm | Brembo OEM Porsche 19Z 4-Piston Caliper / 380mm | 21" |
Every StopFlex kit is bespoke-engineered for your exact model and trim — brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, never assumed from the platform. Trims that share a chassis name can differ mechanically: a pure performance variant often carries different knuckles, hub geometry, and wheel ET clearance than the standard models, so parts that bolt onto one are not the parts that fit the other. Calipers, pads, rotor hats, floating hardware, and brake lines ship as one matched system built to your confirmed trim. Modified knuckles, uprights, or non-factory suspension mounting points must be reviewed before ordering.
The 420 mm rotor sets the minimum wheel size at 21" — 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 | Akebono OEM Audi RS 10-Piston (10N) Caliper OE / Part No.: L 4M8615107A · R 4M8615108A |
| Front CCB rotors | 420mm |
| Rear calipers | Brembo OEM Porsche 19Z 4-Piston Caliper OE / Part No.: L 9Y0-615-423-AC · R 9Y0-615-424-AC |
| Rear CCB rotors | 380mm |
| 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
Every StopFlex kit order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors — the brake package matches your exact build, not a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why Carbon Ceramic — and Why StopFlex
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.
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.
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.
Caliper Overview
Front Caliper
The front uses the Akebono OEM Audi RS 10-Piston (10N) caliper, a monobloc unit with ten pistons for even pad loading across the 420mm rotor. On a 2,200 kg-plus X5, that pressure distribution is what keeps pedal feel firm through repeated hard stops.
Rear Caliper
The rear runs the Brembo OEM Porsche 19Z 4-piston caliper on a 380mm rotor, adding real thermal capacity out back so the fronts aren't doing all the work on long downhill or spirited driving. It is matched to your confirmed trim's rear knuckle and parking-brake setup.
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
Will these brakes work in winter and cold weather?
Yes. A cold, untuned carbon-ceramic disc naturally bites less than cold iron on the first stop or two — that's physics, not a fault. We tune around it by matching the pad compound and the disc's ceramic coating specifically for cold starts, so first-stop feel on a cold X5 comes very close to warm summer feel. On the coldest mornings, give yourself a little extra following distance for the first couple of stops and you're set.
Does this fit my exact X5 trim, or is it a generic G05 kit?
Every kit is engineered for your confirmed trim, not the platform. An X5 M (F95) uses different front knuckles, hub geometry, and wheel clearance than an M50i or M60i, so the brackets, rotor-hat offsets, and caliper mounting are cut for the car you tell us you have. We do not make a one-size-fits-all G05 bolt-on claim — we build to your VIN-confirmed trim.
What wheels do I need to clear these brakes?
The front rotor is 420mm, so you need at least 21-inch wheels — anything smaller will not clear the caliper. Spoke design matters too, not just diameter, so send us your wheel details during fitment and we'll confirm caliper-to-spoke clearance before anything ships.
Will the electronic parking brake still work?
Yes. The G05/F95 X5 uses a factory electromechanical parking brake, and the rear Brembo 19Z setup is spec'd to retain that function on your trim. You keep normal Auto Hold and parking-brake operation with no dashboard errors.
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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