2025-2026+ Xiaomi YU7 CCB Big Brake Kit | Akebono 10N 10-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2025-2026+ Xiaomi YU7 CCB Big Brake Kit — Genuine Akebono OEM Porsche 10-Piston (10N) Caliper Front + Genuine Brembo OEM Porsche 19Z 4-Piston Caliper Rear Setup
The Xiaomi YU7 is a heavy, high-output EV SUV, so repeated high-speed braking loads the factory iron system with heat while the open-wheel design makes brake dust easy to see. This StopFlex Kit Upgrade replaces the factory brake package with 420mm front carbon-ceramic rotors, Genuine Akebono OEM Porsche 10-Piston (10N) Calipers, 410mm rear carbon-ceramic rotors, and Genuine Brembo OEM Porsche 19Z 4-Piston Calipers. The payoff is higher thermal capacity, lower brake dust, reduced rotating mass versus comparable iron rotors, and confirmed per-trim fitment for the exact YU7 being built.
- 420mm front and 410mm rear carbon-ceramic rotors are sized for the YU7’s EV mass and speed potential; wheels under 21 inches will not clear the front rotor.
- The front axle uses the exact Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, paired to StopFlex hats, brackets, pads, hardware, and stainless lines for the confirmed YU7 trim.
- YU7 Long Range/RWD, Pro AWD, Max AWD, and later 2026+ variants can differ in wheel package and chassis hardware, so StopFlex confirms offsets and caliper clearance before production.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Xiaomi YU7 |
| Model years | 2025-2026+ |
| Front setup | Genuine Akebono OEM Porsche 10-Piston (10N) Caliper / 420mm |
| Rear setup | Genuine Brembo OEM Porsche 19Z 4-Piston Caliper / 410mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 21" (for the 420 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 420 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 axle uses the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, a genuine OEM-derived Porsche application selected for its piston count, pad support, and stable pressure distribution across a large 420mm rotor. The 10-piston layout spreads clamping load over a broad pad area, which helps pedal consistency and heat control on a heavy EV SUV. StopFlex pairs this caliper with YU7-specific brackets, rotor hats, lines, and hardware rather than treating the YU7 as a generic platform fitment.
Rear Caliper (Balance)
The rear axle uses the Genuine Brembo OEM Porsche 19Z 4-Piston Caliper with a 410mm carbon-ceramic rotor to keep rear brake torque, stability, and thermal capacity matched to the larger front system. Because the YU7 uses a factory electronic parking brake, the rear package is engineered around EPB retention and must be validated against the customer's exact trim before production.
Front & rear, engineered together: The 420mm front and 410mm rear package is engineered as a complete brake system so front bite, rear contribution, ABS behavior, and pedal travel are considered together. A front-only oversized conversion can shift brake balance forward; this kit keeps the rear axle involved so the YU7 remains stable under repeated high-speed stops.
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 Akebono OEM Porsche 10-Piston (10N) Caliper |
| Front CCB rotors | 420mm |
| Rear calipers | Genuine Brembo OEM Porsche 19Z 4-Piston Caliper |
| Rear CCB rotors | 410mm |
| 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 2025-2026+ Xiaomi YU7 trim?
StopFlex does not treat every YU7 as the same brake platform. Before production, we confirm the exact trim, front knuckle/upright package, hub geometry, wheel size, wheel offset, and spoke clearance, then machine the brackets and rotor-hat offsets for that specific car.
What wheel size do I need for the 420mm front rotor?
The 420mm front rotor requires at least a 21 inch wheel. Diameter is only the first check; the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper also needs adequate spoke clearance, so StopFlex verifies wheel specs before the kit is built.
Will the electronic parking brake and auto-hold functions still work?
The YU7 is factory-equipped with an electronic parking brake, so the rear package is built to retain EPB function where the customer's confirmed trim and rear hardware allow it. EPB details are verified during order confirmation because rear caliper mounting and parking-brake integration must match the actual vehicle.
Why choose carbon-ceramic instead of staying with iron rotors?
Carbon-ceramic rotors reduce brake dust, resist heat saturation during repeated stops, and cut rotating mass compared with similarly sized iron rotors. On a large EV SUV like the Xiaomi YU7, that matters for wheel cleanliness, steering response, and consistent braking during fast road or track use.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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