Zeekr 009 Big Brake Kit Upgrade / TTSPORT Mono EMB6
The Zeekr 009 is a big, heavy EV MPV, and that extra battery weight puts real strain on the factory brakes during repeated high-speed stops. One owner decided the stock setup wasn't keeping up and moved to a TTSPORT EMB6 forged six-piston caliper up front, paired with a 380mm carbon-ceramic rotor on each axle. Here's what went into the build.
A heavier vehicle needs more braking capacity to shed the same speed in the same distance. Swapping in a larger, rigid caliper and a rotor with more thermal mass is the straightforward fix — more clamping force, more heat capacity, less fade over repeated stops.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Zeekr 009 electric MPV |
| Front caliper | TTSPORT EMB6 forged monoblock six-piston caliper |
| Front rotor | 380mm carbon-ceramic rotor |
| Rear rotor | 380mm oversized carbon-ceramic rotor |
| Bracket | Custom vehicle-specific caliper bracket |
| Pads | High-performance ceramic brake pads |
| Lines | TTSPORT stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts and fasteners |
Below is the official TTSPORT spec sheet for the EMB6 caliper used on the front axle of this build.
| Brake Caliper | |
|---|---|
| Series | Mono Series |
| Model / Application | EMB6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Two-piece heat-insulated pistons without dust boots |
| Piston Diameter | 30 mm × 2 / 34 mm × 2 / 38 mm × 2 |
| Caliper Dimensions | L 382 mm × W 160 mm × H 92 mm |
| Total Piston Area | 55.0 cm² per caliper, all pistons combined |
| Manufacturing Process | Monoblock forged aluminum body |
| Net Weight | 3.25 kg per caliper, without pads |
| Surface Finish | Nickel-plated |
| Recommended Wheel Size | 18 in or larger |
| Recommended Rotor Size | Ø355–405 mm × 32 mm-34 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 101 |
| Caliper Mounting Type | Radial mount with vehicle-specific caliper brackets |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
Every kit ships with the vehicle-specific bracket, pads, and stainless lines needed to bolt the EMB6 into place — no adapting or fabricating required on install day.
Why It Works
- Monoblock forged aluminum construction gives the caliper body more rigidity than a two-piece bolted design, so clamping force goes into the pads instead of flexing the housing.
- Six pistons spread clamping force more evenly across the pad surface than a stock two- or four-piston caliper, which helps even pad wear and modulation.
- Two-piece heat-insulated pistons keep heat from the pads out of the brake fluid, which helps preserve a firm, consistent pedal on repeated high-speed stops.
- The 380mm carbon-ceramic rotors add thermal mass on both axles, which matters on a heavy EV where the battery pack adds weight the brakes have to manage on every stop.
- A carbon-ceramic rotor also runs noticeably lighter than a same-size iron disc, cutting unsprung and rotating mass at each corner.
The lightweight, cutout-heavy caliper body isn't just for looks — the open sections help air move across the caliper and pads, which slows heat buildup during hard or repeated braking.
Installation Gallery
FAQ
What does the TTSPORT kit on this Zeekr 009 include?
Is the TTSPORT EMB6 caliper forged?
What wheel size does the EMB6 caliper recommend?
How many pistons does the EMB6 caliper use?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.