2014-2019 Mercedes-Benz CLA-Class / AMG (C117/X117) CCB 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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2014-2019 Mercedes-Benz CLA180 / CLA200 / CLA250 / CLA45 (C117/X117) CCB Big Brake Kit — Genuine Brembo GT6 Front + Genuine Brembo GT4 Rear Setup
The 2014-2019 Mercedes-Benz CLA C117/X117 owner shopping this kit is usually solving repeated heat load, brake dust, or wheel-clearance limits from an iron big-brake setup, especially on CLA250 and CLA45 cars driven hard. StopFlex builds this kit around 380 mm carbon-ceramic rotors with Brembo V6 / GT6 / GTS6 6-Piston Caliper Options in front and Brembo V4 / GT4 / GTS4 4-piston options in the rear, giving the compact CLA chassis more thermal capacity with less rotating mass and less visible dust. Brackets, rotor-hat offsets, and caliper mounting are specified for the confirmed CLA180, CLA200, CLA250, or CLA45 trim rather than assumed from the shared C117/X117 chassis name.
- 380 mm front and rear carbon-ceramic rotors require 19 inch or larger wheels on the CLA C117/X117; barrel and spoke clearance must still be checked against the chosen Brembo caliper.
- CLA45 AMG and standard CLA180/CLA200/CLA250 variants can differ in front upright, hub, and wheel-offset clearance, so StopFlex engineers the brackets and rotor hats to the exact confirmed trim.
- The front setup uses Brembo V6, GT6, or GTS6 6-piston caliper options on a 380 mm rotor, while the rear uses matched V4, GT4, or GTS4 4-piston caliper options on a 380 mm rotor.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-Benz CLA180 / CLA200 / CLA250 / CLA45 (C117/X117) |
| Model years | 2014-2019 |
| Front setup | Brembo V6 / GT6 / GTS6 6-Piston Caliper Options / 380mm |
| Rear setup | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 19" (for the 380 mm front rotor) |
Every StopFlex kit is bespoke-engineered for your exact model and trim — the brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, not assumed from the platform. This matters because trims that share a chassis name can differ mechanically: a pure M or performance variant often carries different front knuckles/uprights, hub geometry, and wheel axial (ET) clearance than the standard models in the same family, so a bracket and hat offset that bolt onto one are not the same parts that fit the other. StopFlex supplies the calipers, pads, rotor hats, floating hardware, and brake lines as a matched system built to your confirmed trim. Cars with modified knuckles, modified uprights, or non-factory suspension mounting points must be reviewed before ordering and are not treated as direct-fit.
This setup uses a 380 mm front 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.
| 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 |
Caliper Overview — Front & Rear Balance
Front Caliper (Primary Upgrade)
The front axle uses Brembo V6 / GT6 / GTS6 6-Piston Caliper Options, giving the CLA a six-piston fixed-caliper layout for even pad loading, firm pedal response, and stable clamping on the 380 mm rotor. The buyer chooses among V6 = Genuine Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 mm rotor, GT6 = Genuine Brembo GT | M6 6-Piston Caliper — 380 mm rotor, or GTS6 = Genuine Brembo GT | S6 6-Piston Caliper — 380 mm rotor. Each option is based on genuine Brembo hardware rather than an unbranded casting, with StopFlex supplying the CLA-specific mounting solution.
Rear Caliper (Balance)
The rear axle uses Brembo V4 / GT4 / GTS4 4-Piston Caliper Options on 380 mm carbon-ceramic rotors to keep rear contribution matched to the front 6-piston conversion. The rear build is specified around the CLA’s factory electronic parking brake requirements so parking-brake function is addressed during engineering instead of left as an afterthought.
Front & rear, engineered together: A 380 mm front-only conversion can shift pedal feel and thermal behavior forward if the rear axle remains stock. StopFlex engineers the front and rear rotor hats, caliper brackets, pad selection, and line package together so the CLA180, CLA200, CLA250, or CLA45 receives a matched brake system rather than a visual front upgrade with an underdeveloped rear axle.
Make It Yours — Color & Logo Customization
Every StopFlex kit-upgrade order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the brake package matches your exact build instead of a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
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.
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 |
|---|---|
| Front calipers | Brembo V6 / GT6 / GTS6 6-Piston Caliper Options |
| Front CCB rotors | 380mm |
| Rear calipers | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options |
| Rear CCB rotors | 380mm |
| CCB brake pads | Matched for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Color customization | Custom caliper colors, a custom caliper logo, and custom rotor hat colors are available for every kit-upgrade order. |
| 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. |
| Front caliper option mapping | V6 = Genuine Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 mm rotor GT6 = Genuine Brembo GT | M6 6-Piston Caliper — 380 mm rotor GTS6 = Genuine Brembo GT | S6 6-Piston Caliper — 380 mm rotor |
| Rear caliper option mapping | V4 = Genuine Brembo OEM Cadillac CTS-V 4-Piston Caliper — 380 mm rotor GT4 = Genuine Brembo GT | M4 4-Piston Caliper — 380 mm rotor GTS4 = Genuine Brembo GT | S4 4-Piston Caliper — 380 mm rotor |
EPB & Rear Caliper Options
This vehicle leaves the factory with an electronic parking brake (EPB) built into the rear brake, so the rear of the kit is built to keep that EPB working. There are two rear paths. The first is a dual-caliper rear: a main performance caliper handles braking while a dedicated EPB actuator caliper is retained alongside it, so the electronic parking brake, auto-hold, and hill-start assist all keep working; on this path the rear performance caliper can be the TTSPORT EP4 / EP4S 4-piston caliper. The second is an EPB-integrated caliper, a single rear caliper with the electromechanical parking-brake motor built in for a cleaner install with fewer parts behind the wheel; on this path the rear is the TTSPORT EP4 / EP4S 4-piston caliper with integrated EPB. Which path fits best depends on your exact trim and EPB configuration, your budget, your appearance preference, and your wheel size and spoke clearance. Confirm your car's rear-brake configuration with StopFlex before ordering so the correct EPB-compatible rear option is built for your kit.
| Rear option | What it is | Rear caliper | Best when |
|---|---|---|---|
| Dual caliper (EPB retained) | Performance caliper plus a dedicated EPB actuator caliper, both fitted on the rear, so the factory electronic parking brake keeps working. | TTSPORT EP4 / EP4S 4-Piston Caliper | You want guaranteed factory EPB, auto-hold, and hill-start behavior preserved. |
| EPB-integrated caliper | A single rear caliper with the electromechanical parking-brake motor built in, for a cleaner install with fewer parts behind the wheel. | TTSPORT EP4 / EP4S 4-Piston Caliper with integrated EPB | You want a cleaner single-caliper rear with full EPB function. |
FAQ
Will this 380 mm kit fit my exact CLA180, CLA200, CLA250, or CLA45?
Fitment is confirmed per car before production. StopFlex does not assume one C117/X117 bracket or hat offset fits every CLA trim; CLA45 AMG, CLA250, and lower-output trims can require different mounting geometry, rotor-hat offset, and wheel-clearance checks.
What wheel size do I need for the 380 mm rotors?
The minimum wheel diameter is 19 inches because this kit uses 380 mm front and rear rotors. Wheel diameter alone is not enough; inner barrel shape, spoke profile, offset, and the selected Brembo V6, GT6, or GTS6 front caliper must be checked before the kit is built.
Will the electronic parking brake still work?
Yes, the rear package is engineered with the CLA C117/X117 factory electronic parking brake requirement in mind. EPB retention must be confirmed with the exact rear-caliper option, trim, and vehicle data during order validation.
Why choose carbon-ceramic rotors instead of another iron big-brake kit?
On a compact CLA chassis, carbon-ceramic rotors reduce rotating and unsprung mass compared with equivalent iron rotors, resist heat-related fade during repeated hard braking, and produce far less dark brake dust on open-spoke wheels. The tradeoff is that pad choice, bedding, and wheel fitment must be specified correctly for street or track use.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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