2025-2026+ Polestar 4 Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2025-2026+ Polestar 4 Carbon Ceramic Brake Kit — OEM-Size Replacement
This StopFlex carbon ceramic brake kit is built as an OEM-size replacement package for 2025-2026+ Polestar 4. For this high-torque EV performance build, the buying decision is usually about vehicle weight, instant torque, clean wheels, corrosion resistance, and predictable braking when friction brakes are used hard; the kit keeps the factory brake architecture while using the rotor references shown for this exact trim family.
- Targeted at EV owners who want a cleaner premium brake package without turning the product page into generic EV marketing.
- Built around this page's brake data, not a universal-fit carbon ceramic brake claim.
- Fitment verification remains required before production so rotor sizing, caliper layout, and mounting details stay controlled.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Polestar 4 |
| Model years | 2025-2026+ |
| Front rotor reference | Polestar 4: 392mm |
| Rear rotor reference | Polestar 4: 385mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 20" (for the 392 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 392 mm rotor, so the minimum wheel size is 20". Wheels under 20" 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
Is this kit confirmed for every Polestar 4 trim?
No. OEM replacement compatibility is limited to the trims and rotor dimensions listed on this page; unlisted base models or different brake packages should not be treated as direct replacement.
What do I need to confirm before ordering?
Confirm model year, listed trim, current caliper type, front rotor reference Polestar 4: 392mm, rear rotor reference Polestar 4: 385mm, and whether the car still uses factory brake hardware.
Can I customize the rotor hat color?
Yes. Rotor hat color can be customized for every OEM replacement order before production.
Which rotor spec should I choose?
Street Spec is the clean road-use choice, Track-Day Spec fits repeated fast-road or track-day braking, and Motorsport Spec is for competition-focused builds that can manage warm-up and brake cooling.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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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