2021-2026+ Polestar 2 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+ Polestar 2. Factory rotor specifications and the smallest wheel that clears each trim:
| Trim | Front Rotor (Factory) | Rear Rotor (Factory) | Min. Wheel Size |
|---|---|---|---|
| Perf | 375mm | 340mm | 19" |
| Std | 345mm | 320mm | 18" |
Keep Your Factory Calipers?
The rule is simple: front factory calipers must be 4-piston or more; the rear has no limit. A 1- or 2-piston floating front setup cannot take direct-replacement discs — that car needs the Full Upgrade kit with calipers. We build to the factory rotor specs above. Aftermarket calipers (Brembo, AP Racing, Alcon, Wilwood) work too — send the caliper model, pad shape, and rotor size for confirmation first.
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
Cold facts first: an untuned ceramic disc bites less than iron on a freezing morning — physics, not a defect. StopFlex tuned both the pad compound and the disc's ceramic coating for cold starts, so winter cold-car braking now feels very close to summer. Leave extra margin on the very coldest first stops; severe-climate daily drivers should build 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
Ceramic discs shrug off surface temperatures that would destroy iron, but the rest of the system still heats up: pads, fluid, seals, calipers, and wheels all absorb soak heat during repeated hard stops. For track days, long descents, and sustained hard driving, run brake cooling and high-temperature fluid.
Get Your Fitment Confirmed
Send the exact vehicle details, current rotor sizes, and caliper type before ordering. Every StopFlex order is confirmed against your VIN-level configuration before production.
FAQ
Will these fit my Polestar 2, and how do I know which rotor size I need?
This page covers the Polestar 2 in two rotor families: Performance-equipped cars run 375mm front and 340mm rear, while standard cars run 345mm front and 320mm rear. You must match your existing front rotor size exactly, since the carbon-ceramic disc, hat, and floating hardware are machined for that diameter. Direct Replacement reuses your factory calipers, so it only applies when your front caliper is a 4-piston or larger unit; the rear has no piston restriction. Measure your rotors or send us your VIN and trim before ordering.
How do these behave in winter, since the Polestar 2 already uses so little friction braking?
Two honest points. First, a cold carbon-ceramic disc bites slightly less than cold iron on the first stops of the day. That is basic physics, not a defect. StopFlex tunes for it: the pad is a carbon-ceramic-specific low-metallic compound and the disc carries an optimized ceramic coating, both tuned for cold starts, so winter cold-car feel now sits very close to summer feel. Second, because EV regenerative braking keeps the friction brakes lightly used, your pads and rotors stay cleaner and less corroded than on an ICE car. Still, leave a little extra following distance on the very first cold stops until the system comes up to temperature.
Do these work with the Polestar 2's electric parking brake?
Yes. The rear kit is built around the factory electric parking brake actuators on the rear calipers, which you keep and reuse. Since this is a Direct Replacement that retains all factory calipers, the EPB, the caliper electronics, and the car's brake-by-wire logic are untouched. The swap is no more involved than fitting aftermarket iron discs and pads.
Will regenerative braking cause these carbon-ceramic rotors to glaze or rust from disuse?
Regen means your Polestar 2 friction brakes engage far less than on a gas car, which is exactly where carbon ceramic helps. Iron rotors sitting unused develop surface rust and pad deposits, causing the creaks and groans owners report at low-speed stops. Carbon-ceramic discs do not corrode the way gray iron does, so they stay clean through long stretches of regen-only driving and give a consistent bite when you do need the friction brakes. Occasional firmer stops still help keep the pad-to-disc surface conditioned.
More Contact Information
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