2019-2024 Mercedes-AMG CLS53 (C257) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2019-2024 Mercedes-AMG CLS53 (C257) Carbon Ceramic Brake Kit — OEM-Size Replacement
The C257 Mercedes-AMG CLS53 is heavy enough and quick enough to overwork the factory iron brake package during repeated high-speed stops, and open AMG wheels make iron dust hard to ignore. This StopFlex OEM-size replacement kit keeps the CLS53 brake envelope at 370mm front and 360mm rear while replacing the wear surfaces with carbon-ceramic rotors, matched pads, hats, and floating hardware. The payoff is higher thermal stability, lower rotating unsprung mass, cleaner wheels, and fitment confidence for cars built around the listed CLS53 rotor sizes.
- Built for 2019-2024 Mercedes-AMG CLS53 C257 applications using 370mm front and 360mm rear OEM-size rotors.
- Carbon-ceramic friction rings reduce brake dust compared with gray iron rotors on the CLS53’s exposed AMG wheel designs.
- Includes rotors, pads, hats, and floating hardware so the replacement is matched around the CLS53’s original rotor diameters instead of a big-brake conversion.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-AMG CLS53 (C257) |
| Model years | 2019-2024 |
| Front rotor reference | CLS53: 370mm |
| Rear rotor reference | CLS53: 360mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 19" (for the 370 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 370 mm rotor, so the minimum wheel size is 19". Wheels under 19" 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
Will this kit fit every 2019-2024 CLS53?
It is limited to Mercedes-AMG CLS53 C257 cars that use the 370mm front and 360mm rear rotor setup listed on this page. Confirm your VIN, existing rotor diameters, caliper package, and wheel clearance before ordering.
Does the rear electronic parking brake still work?
Yes, this is an OEM-size replacement approach, not a rear brake redesign. The kit is intended to retain the CLS53 rear brake architecture, including the factory electronic parking brake function when installed with the correct compatible rear setup.
Why switch from the factory iron rotors?
Carbon-ceramic rotors handle repeated heat cycles with less thermal distortion, produce less visible dust, and remove rotating unsprung weight. On a CLS53 used for fast road driving or repeated highway braking, those gains are more relevant than peak single-stop force.
Is this a street kit or a track-only kit?
It is designed as an OEM-size carbon-ceramic replacement for street-driven CLS53 cars that need better heat tolerance and cleaner wheels. For track use, pad selection, bedding, cooling, and post-session inspection matter more than rotor material alone.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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