
2023-2026+ Toyota Crown Crossover (S235) CCB Big Brake Kit | Brembo GT BM6 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2023-2026+ Toyota Crown Crossover (S235) CCB Big Brake Kit — Genuine Brembo GT BM6 6-Piston Caliper Front + Genuine Brembo GT BM4 4-Piston Caliper Rear Setup
The 2023-2026+ Toyota Crown Crossover S235 is a heavy AWD hybrid sedan, so repeated high-speed stops and mountain driving can expose the limits of the factory iron brake package through heat, dust, and rotor mass. This StopFlex kit uses a 405 mm front carbon-ceramic rotor with the Genuine Brembo GT BM6 6-Piston Caliper and a 380 mm rear carbon-ceramic rotor with the Genuine Brembo GT BM4 4-Piston Caliper to add thermal capacity while reducing rotating unsprung weight. Each kit is built around the customer’s exact Crown trim and wheel package, with brackets, rotor hats, offsets, lines, and hardware specified after fitment confirmation.
- 405 mm front and 380 mm rear carbon-ceramic rotors require 21-inch or larger wheels on the Toyota Crown S235; wheels under 21 inches will not clear the front package.
- The front axle uses the exact Genuine Brembo GT BM6 6-Piston Caliper, giving the Crown a larger pad platform and more controlled pressure distribution than the factory street-caliper layout.
- The kit is engineered for the confirmed Crown Crossover S235 trim, because wheel offset, spoke clearance, hub position, and rear EPB packaging must be checked before brackets and hats are finalized.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Toyota Crown Crossover (S235) |
| Model years | 2023-2026+ |
| Front setup | Genuine Brembo GT BM6 6-Piston Caliper / 405mm |
| Rear setup | Genuine Brembo GT BM4 4-Piston Caliper / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 21" (for the 405 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 405 mm front rotor, so the minimum wheel size is 21". Wheels under 21" 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 upgrade is the Genuine Brembo GT BM6 6-Piston Caliper matched to a 405 mm StopFlex carbon-ceramic rotor. Its six-piston layout spreads clamping load across a larger pad area, supporting firmer pedal response and more even pad pressure during repeated stops. As a genuine Brembo GT component, it is a known performance caliper architecture rather than an unbranded casting.
Rear Caliper (Balance)
The rear uses the Genuine Brembo GT BM4 4-Piston Caliper with a 380 mm carbon-ceramic rotor to keep rear torque contribution matched to the larger front system. Rear hardware is specified around the Crown’s factory electronic parking brake packaging so brake hold and parking-brake requirements can be addressed during fitment confirmation.
Front & rear, engineered together: The BM6 front and BM4 rear package is engineered as a system so the Crown does not receive a front-only torque increase that leaves the rear axle underworked. Matching rotor diameters, caliper piston architecture, pad compound, and hat offsets together helps preserve brake balance, ABS behavior, and straight-line stability under hard braking.
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 | Genuine Brembo GT BM6 6-Piston Caliper |
| Front CCB rotors | 405mm |
| Rear calipers | Genuine Brembo GT BM4 4-Piston Caliper |
| 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. |
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 kit fit my exact 2023-2026+ Toyota Crown Crossover S235 trim?
Fitment is confirmed per car, not assumed from the S235 chassis name. StopFlex checks the exact model year, trim, hub geometry, factory brake layout, wheel diameter, wheel offset, and spoke clearance before setting the brackets and rotor-hat offsets.
What wheel size is required for the 405 mm front rotor?
The 405 mm front carbon-ceramic rotor requires 21-inch or larger wheels. Wheels below 21 inches will not clear the package, and 21-inch wheels still need a spoke-clearance check for the Genuine Brembo GT BM6 6-Piston Caliper.
Will the electronic parking brake and Brake Hold still work?
The Toyota Crown S235 uses a factory electronic parking brake with Brake Hold, so the rear brake package must be built around that system. StopFlex confirms the rear EPB configuration before production rather than treating the rear caliper as a generic swap.
Why choose carbon-ceramic brakes for a Toyota Crown instead of larger iron rotors?
Carbon-ceramic rotors reduce rotating unsprung mass, produce less visible brake dust, and tolerate repeated heat cycles better than comparable iron street rotors. On the Crown’s AWD hybrid platform, that matters for steering response, wheel cleanliness, and consistent braking on repeated high-speed stops.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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