Carbon-Ceramic Brake Rotor Direct Upgrade for ZEEKR 9X — OEM Same Size, Bolt-On Installation

# 1. Vehicle Basic Information Model: Zeekr 9X Original brake rotor specifications: Front: 412mm × 40mm ventilated cast iron rotor Rear: 365mm × 26mm ventilated cast iron rotor Vehicle features: Flagship heavy-duty pure electric SUV with a curb weight of over 2.5 tons and peak horsepower up to 1,000 PS. Equipped with factory multi-piston high-performance calipers. Its heavy weight and powerful acceleration impose extreme demands on brake heat dissipation and fade resistance. Stock cast iron rotors are prone to brake fade after continuous aggressive braking, generate excessive brake dust and add unsprung mass. # 3. Modification Solution: 1:1 OEM-Size Replacement Carbon-Ceramic Rotor Kit ## Core Component Specifications (Direct bolt-on with zero tolerance, fully matching OEM dimensions) - Front carbon-ceramic brake rotor: 412×40mm, identical air duct design, offset, center bore and PCD bolt pattern as stock rotors - Rear carbon-ceramic brake rotor: 365×26mm, matching the original thickness, outer diameter and mounting reference surface of factory cast iron rotors - Retain all factory hardware: OEM multi-piston calipers, stock brake pads, brake hoses, ABS tone rings and dust shields; no adapter flanges or bracket spacers required ## Core Advantages of Carbon-Ceramic Material 1. Ultra-lightweight design to drastically cut unsprung rotating mass Carbon-ceramic material has only 1/3 the density of cast iron. Each rotor cuts weight by over 50%, with a total weight reduction of more than 30kg across four wheels. Reduced rotational inertia delivers snappier acceleration, lighter steering and more responsive suspension rebound, while moderately lowering power consumption and boosting driving range. 2. Extreme high-temperature stability to eliminate brake fade Cast iron rotors fail once temperatures hit around 600°C, with friction coefficient plummeting under repeated hard braking. Carbon-ceramic rotors withstand temperatures up to 1,300°C, maintaining consistent linear pedal feel without fade, thermal shudder or deformation during long mountain descents or successive high-speed emergency stops. 3. Rust-free design with minimal brake dust for clean wheels Carbon-ceramic material resists oxidation and rust, producing barely visible brake dust to keep wheels spotless and cut down frequent wheel cleaning work. 4. Exceptionally long service life for cost-effective long-term use Carbon-ceramic rotors last up to 400,000km under daily driving conditions — over 5 times the lifespan of stock cast iron rotors, cutting recurring costs on rotor replacements and labor fees.